Peace Walker Incident

Ten years after "Operation Snake Eater," four years after the San Hieronymo Takeover, and two years after the Les Enfants Terribles project, Big Boss, along with his guerilla group: The Militaires Sans Frontieres, travelled around the world after he left America.

November 4th, 1974

Having stationed his troops at the Baranquilla Coast of Colombia, he trained his soldiers at the Barranquilla Coast. On November 4th at 15:42, while training, Kazuhira Miller, his second in command, brought over two people, claiming they were guests. After Naked Snake wondered if that meant they have to relocate again, Kazuhira stated that their guests were not "their friends from Langley," making sure he mentioned that he made sure they weren't followed. A soldier thanked Naked Snake for the training, although he called him Big Boss, causing him to correct the soldier. After apologizing, the soldier then said "Vic Boss." Naked Snake then told the soldier that there is neither victory nor death, unlike other revolutions.

Kaz and Naked Snake then meet with the two guests at their office. The first guest, a man with a strangely robotic red hand thanks Kaz for the Costa Rican coffee. After Snake asks why a distinguished scholar for the Costa Rican government is in Colombia, to which Kaz elaborates further by stating that the man, Ramón Gálvez Mena, was a professor at the unofficial University for Peace. Galvez then explains the situation to them about why he is here: Over the past year, soldiers were coming into Costa Rica that AREN'T theirs. Kaz points out that Costa Rica doesn't even have an army, to which Galvez confirmed by explaining that Article 12 stated that the military as an institution was abolished. The other guest, a girl in a red cloak, explains this is the "peace constitution."

Snake then asked if the soldiers in question were rebels who have fled Nicaragua. Galvez doubts they are, as they are far too organized to be the rebels, or even any Guerilla group. Snake then asks what the Costa Rican government's take on the situation. Galvez explains that the authorities claim they are a multinational security firm hired by the Developmental Corporation of Costa Rica. However, Galvez claimed that this was false since they were bringing in state-of-the-art weapons and equipment by the shipload. When Snake asks where they could get that kind of cash, Galvez hints that "la cia" may be involved. Galvez explains that the United States views Central America as their backyard. He also explains that, even after Cuba, they still maintained a delicate balance with the United States.

When Snake asks why the Costa Rican government can't just "give them the boot," the girl reminds them that Costa Rica is not allowed to bear arms. Kaz then mentions that Japan has a similar amendment to Costa Rica: Article 9. It mentioned that it can no longer maintain an army as well as renouncing war. Galvez then mentioned that he believed that the Militaires Sans Frontieres were a group with neither state nor ideology, and will fight any foe. Galvez then surprises Snake by lunging at him begging to help get the CIA out of Costa Rica. Kaz realizes that he wants to hire them. Galvez confirms this, needing the MSF as their deterrent. He also offers a forward operating base: an offshore plant off the coast of the Carribean, in compensation for not being able to afford paying them in cash. Kaz considers the idea, especially seeing how their base in Colombia is getting run down anyways and the MSF needs a place to settle down. Galvez explains that the government is willing to unofficially aid them. Kaz then explains that a chopper for transport would also be of use.

Before an actual decision could be made, Snake then suddenly interrupts the discussion, accusing if Galvez only seemed to view the Militaires Sans Frontieres as nothing more than a pack of "Dogs of War." Galvez confirmed this by explaining that he saw them as a Army without a Nation. Snake explained that they only left their countries behind, and not actually an Army without a nation. Galvez continues asking for their help. Snake reminds him that force isn't going to do any good if his suspicions are correct, and that their government should consider a political solution. When Galvez explains that the government's hands are behind their backs, Snake instructs him to go to San Jose and tell his bosses that if they desire a negotiator, Snake can provide them with one he knows. Galvez then admits that he was never actually present on their behalf. Galvez then explains that over 20 years, he has preached the virtues of peace at multiple universities, so he is now going to do the same right now.

As if on cue, the girl removes her hood. Galvez then introduced her as Paz Ortega Andrade, a student of his. Kaz remarks that they technically have the same name (Paz is Spanish for peace and Kazuhira is Japanese for peace). Galvez then explained that the force has a supply port north of Puerto Limon, a town on the coast near the Carribean. He also explained that a few days prior, Paz stumbled upon the facility while searching for a lost friend, and ended up captured as a result. He also explained that despite being a child, sixteen years old, she was tortured and the group did terrible things to her. Paz then lifts up her right sleeve, exposing scars to them. Kaz reacts in shock at what she experienced. Galvez explained that she's a huerfana, as her mother died when she was very young and that her grandparents were lost during the Civil War, which resulted in her having a hatred of war with a passion like no other. Paz then explains that her one and only purpose is to protect her namesake, willing to do anything to do so. She then asked Snake to remove them from Costa Rica. Snake is about to refuse when Galvez states that they already know that he is Big Boss, which is also why they came to him. Big Boss then reacts in shock.

November 10th, 1974

Six days later, Snake managed to arrive at the coast of Costa Rica near the supply port. Kaz then contacted Snake telling him that he'll be sending unidirectional signals from the offshore plant, to which he referred to as the Mother Base, as well as advising Snake to make sure no one listens in. After refreshing himself on how to use weapons, he threw a grenade at a closed gate, blowing it away.

Six days earlier, at 20:31, Snake wonders why Galvez and Paz are still at the encampment. Kaz then explains that this might be their chance to expand the Militaires Sans Frontieres. Snake, however, explains that they were nomads and always will be, and even if he considered not trying to be a tool of whoever is in power and settling down, they might eventually become warmongerers. Kaz then tells Snake that the MSF is not like a Mercenary army nor a foreign legion, it is a new kind of business. He also explains they won't try to start a war, and that they just need to find out the Security Company. Snake states that it already apparent that it is actually the CIA. Kaz then realizes that if the group in question was the CIA, then that must mean that Galvez was actually a KGB Agent, and that by allying with him, they'd be making an enemy of America.

Snake then gets fed up with his lighter not functioning properly, so he invites Galvez in to have a little chat. Galvez then reveals that his prosthetic hand has a built-in lighter, allowing Snake to light his cigar. Galvez explained that he used to be a heavy smoker, and that he got his prosthetic hand from the Secretary-General after being awarded a medal. However, he quit smoking due to it ruining his lungs, so he never had much of a use for it since. Snake explains that his codename, Big Boss, was a codename the CIA made up. Galvez then asked if he should call him John. Snake then mentions that he "doesn't have a name" and he gave up on using the Big Boss codename since he first got it ten years ago. He then asks what Galvez was called by Tsentr.

While Paz is drying herself, Galvez recites the phrase "land as slim as a whip and as hot as torture." Kaz correctly identifies the phrase as originating from the Chilean poet Neruda. Galvez then explains his mission: As Central America acts as the bridge keeping North and South America together, the Soviets want this land to build a socialist stronghold. Because of this, not only will America lose its backyard, but with it, it will lose its economic production, shipping lanes, and strategic value. Meanwhile, the Soviets will gain a base in which all of Latin America can be conquered, as whoever gains Central America wins the Cold War. He also explains that they are first trying to get Nicaragua to their side, by aiding the FSLN group to overthrow the Somoza regime, a regime that is for America. However, the CIA won't let that happen, thus explaining why the CIA is currently in Costa Rica. However, he explains that his reason for wanting to hire the MSF is more than just helping the Soviets gain control of Central America: the CIA is planning something that apparently not even he is completely aware of, so he's hiring the MSF to investigate, and then drive them out. In Snake's words, settle a turf war.

Miller also thinks that Galvez had Paz lie for him. However, he denies that he did that, at least in terms of her capture, and in fact, until that moment, he kept any KGB affiliation from her. He also brought her along for reasons other than just having her cite, in Kaz's words, a "sob story:" Although she managed to escape with her life whileas her friend didn't, she also managed to retrieve something that would shed some light on why they were captured. He then reveals a tape and a cassette recorder: the first of its kind, in fact. Kaz mentions that Japan was working on a similar device, but he didn't know the Soviets had as well.

Galvez then plays the tape. Kaz and Snake then hear chirping sounds, apparently belonging to the Quetzal, also known as the Phoenix bird. Apparently, Paz's friend was out recording bird calls in the jungle, but while doing so, she accidentally recorded something that she shouldn't have. The tape then has a woman saying "You can't chase it away. The snake is to vicious. ... I chase it away. It'll bite you unless you kill it. GO HOME!" Snake then recognizes the voice as belonging to The Boss, to which Galvez confirmed from voiceprint analysis. However, he hasn't identified the other woman other than that she sounds like she is in her thirties and apparently British. Snake is shocked at The Boss apparently surviving and hiding in Costa Rica. Galvez then mentions why he got the title of Big Boss in the first place, as well as his history. Snake is hesitant to do it, and Kaz hints that it might be a trap. Galvez then decides if he isn't going to accept the mission, he might as well burn the tape, as he doesn't see any use in it. Snake then decides to do it for Paz.

In the present, Snake spots a man wearing an orange jacket, a golfer hat, and carrying a hunting rifle. Kaz realizes that CIA mercenaries are nearby, and suggests that Snake don't engage them. Snake manages to evade CIA mercenaries in the jungle as well as at the supply depot. He sneaks through the main building where he sees a man who was apparently beaten to death. A radioman nearby is contacting someone on the other line stating that he "broke" the prisoner and got the whereabouts of target 5-0-0. The man on the other line acknowledged this as well as mentioning that TJ-Chrysalis 6000 is to be dispatched to target 500, and that "spears are loaded" and the cargo has crossed point bravo. The Radioman then hangs up after acknowledging the command. Snake then emerges from behind and CQCs him into interrogation mode. Snake demands to know where the cargo was headed. The radioman then reveals it is heading for Mt. Irazu. Snake then asked what was up at Irazu. The Radioman refused to answer, so Snake throws him at several boxes. The Radioman lunges at Snake, only to end up being shocked by the Stun Rod.

Snake then notices that many of the badges are odd for the location, including the Radioman. He also hears a humming noise and sees a strange machine flying through the air. He then finds a radio nearby: a radio that reverses the audio phase, in fact. Kaz then decides to use the radio and change the frequencies to ensure no one listens in. Snake also explains he found a map of all the bases in Costa Rica, and that cargo is going from the West Marshes up to Mt. Irazu. He also explains that the supply depot contains dozens of film badges, and even the Radioman was wearing one. He also mentions that whoever the Radioman was talking to mentioned "Spears" being on the cargo. Kaz then realizes that this would mean, to which Snake finished for him, the CIA was apparently bringing Nukes into Costa Rica.

Infiltration

Snake then arrives at El Cenagal Jungle to locate the FSLN Boathouse northwest of his current position. After bypassing the ravine and traveling through the swamp near the Rio Del Jade, arrives near the Boathouse and has to neutralize the security detail near the boathouse and make contact with its commandante. After doing this, Snake then travels up to the roof where the FSLN members are hiding out. They wonder if he is El Che and wonder what they can do. Snake then asked them if they were the Sandinistas, and shows them a picture. Chico and Amanda recognized the man in the photo as being their "Nuestro Viejo" who died. Snake then asks if the woman was his daughter. He then deduces that she's the Delegada. He also explains that he is not an enemy as offers them Cuban Cigars. Amanda states that while she prefers cigarettes, she'll gladly take whatever Snake has to repay him for saving them. She then asks if Snake was Cuban, to which he responds as being a Bird Photographer from Colombia who arrived at Costa Rica to take pictures of Quetzals. He also mentioned that Telephotos are for amateurs, and it needs the right timing when asked by Amanda how he could do that without Telephoto lens.

Amanda, after finishing her cigar and sending Chico, her younger brother, away, then explains to Snake about the current situation. Costa Rica is crawling with soldiers. Despite their claims of being from a security firm, they look more like hired guns than actual security firm soldiers. She also explained that they have the latest gear from all over the world, and they had apparently been hired by CODESA. Snake, after sarcastically responding that he's "Papa Muel," reveals that they are actually UCLAS, to which Amanda then recognizes as being the CIA. Snake then explains that he saw them "setting up shop" in town and that they were going to do to Costa Rica what they did in Chile. Snake also mentions that he doesn't know what the CIA is after, but he definitely know its not himself. He then asks if the CIA isn't there to push her and the remaining members of the FSLN back into Nicaragua. Amanda denies that this is the case, as they have far too many hardware and bases just for them, including Tanks and Helicopters, comparing the situation to Da Nang during the Vietnam War, meaning it has to be something else.

She also mentioned that one of their bases is nearby: a Factory north of the boathouse. She also mentioned when Snake questioned her about a transport boat with mercenaries on board that it was heading upstream towards Irazu. She doesn't answer if she has any idea as to what is on it, but she mentioned that she could introduce some of her compas currently located there to Snake, but she doesn't recommend going into the mountains as many of her soldiers were killed up there. She explained that their soldiers were taken captive by the CIA and tortured for information about their compas, and afterwards killed like pigs. She explains that the boathouse was their last hideout and final refuge for the El Frente after being pushed out of Nicaragua and into Costa Rica. She then mentioned that El Monstruo attacked them. She mentioned her father and Viejo was their hope: "La Esperanza". Chico then returns and explained that thanks to their father's demise, Amanda, his sister is "La Commandante de la Revolution." Amanda, however, is unsure if she truly has what it takes to be the new leader to replace her father, as it takes a great amount of skill to become a cacique and someone great to be a La Esperanza. Snake then tells her that neither heroes nor leaders choose to be that, and that they'll follow her with no questions asked if she continues to follow the legacy of La Esperanza. Amanda explains that while her compas does trust her, they never call her "Commandante." As exemplified by Chico calling her by her first name.

However, Chico had good reason to call her name that moment by shouting El Colibri, as the machine that Snake witnessed before, as well as several drones, appeared out of nowhere and attacked them. Snake jumps on Amanda to save her from the machine gun fire of the machine. Snake then managed to pick off a few drones with his RPG-2, but when he attempted to fire a round at the machine itself, it evaded the round at the last second. Amanda then explains that it is "Un Hombre Nuevo:" An unmanned weapon. In other words, a robot. Chico is unfortunately captured by one of the drones. Amanda tries to shoot down the drone, but Snake stops her, as Chico would die from the fall if she did. Amanda explains it's better that her brother is dead than captured and tortured. Amanda then tells Snake to stay put, as she'll need to repay him later as long as he's alive. Amanda then has her FSLN group chase after the device, declaring "Venceremos!" as they depart.

Shortly after Amanda left, several soldiers came in from the southeast, so Snake had to evade them without getting caught. Snake later goes over and crosses the ravine to the other side of the swamp and arrives at a Banana Factory, the base that Amanda mentioned. Unfortunately, shortly after he got through the Sorting Area of the Banana Factory into the actual farm, he has to fight a LAV-typeG in order to proceed further into the area, as he couldn't simply bypass them. After Kazuhira asked Snake if he was ready to fight them, Snake proceeded to fight him. Kaz also gave him two options to get through: Either destroy the LAV-typeG or neutralize the enemy squadron.

After neutralizing the LAV-typeG and its Reinforced Soldier Unit, he notices one of the drones going towards the gate, and beyond it, the weapon from before near the jungle, so Snake approaches the gate and exits the plantation. In the Jungle, Snake finds Amanda. She ends up being captured by one of the drones, but she cuts herself free from the grappling arm and plummets down to the ground. Unfortunately, she ended up breaking one of her legs in the process of landing. anonter Drone managed to capture her, this time by the leg. Amanda tells Snake to shoot it down, to which Snake mentions that she'll fall if he does. Amanda then tells him to shoot it down. Reluctantly, Snake obliges and shoots down the drone. Amanda ends up grievously injured from the resulting fall, but she manages to survive nonetheless.

While Snake is tending to Amanda and rolling her a cigarette, Amanda explains to Snake her backstory. After Somoza's national guards evicted her unit out of Nicaragua, their only reason that they continued fighting was because the KGB supplied them with a Drug Purification plant, and they operated with the Banana Factory as a front. She tried to keep it out of Chico's sights as he was too young, and she is ashamed that he and her unit had to resort to drug trafficking to fund their revolution, compas, weapons, and food. They also planned to return to Nicaragua and rebuild it with their hands. Everyone in the unit knew but Chico about the factory's true purpose. However, she laments that her revolution is over, and that no one can replace her father. They took her plant away and her unit cannot regroup.

After being given the cigarette, Amanda then asks Snake if he's going after the cargo. Snake confirms that he is. Amanda guesses the cargo must be important. Snake explains the cargo might be nukes. Amanda then realizes what is probably going to happen, and urges Snake that they have to go to Mt. Irazu, as the transport route leads to Irazu and is most likely where her Compas and Chico are. She explained that whenever she and Chico argue, he goes off to be by himself, hence why he knows more about bases than anyone else. Snake notes that she's extremely worried about her baby brother. Amanda confirms this and explains that this is the reason why she is not cut out to be a leader. Snake agrees to help, requesting only that she tell him where he is located, even if it is far off. She explains that there is a prison in the mountains where he is most likely located. She also requests of Snake to, if he can't save Chico before he ends up giving in to the torture and selling out her compas, that he kill him so he can at least keep his honor, along side easing his pain and ending his humiliation. Snake mentioned that he simply cannot keep that promise, as several of his own men have left their countries and lived, and besides which, there is always another reason to live. After Amanda declares that she feels alive again, he offers to have her join his unit until she heals up. She then realizes he wasn't who he said he was and asks him who he really was and why he is here.

Snake properly introduces himself, to which Amanda wonders if he is the one who will lead "patria libre o morir" before passing out. He then contacts Kaz, mentioning a recovery for one wounded. Kaz acknowledges the command, and then Snake tells Kaz that their suspicions were correct: The nukes in the cargo were indeed heading for the mountain before moving out. He then leaves the forest and enters Camino De Lava's hillside.

After travelling across the hillside, Snake then arrives at the Junction and shortly thereafter enters Aldea los Despiertos, where he neutralizes the security detail and then searches the doors throughout the prison. Snake then finds Chico in the room. Chico recognizes Snake as being the photographer. Snake confirms it and claims he is a war photographer. Chico then points out that he said he was a bird photographer earlier. Snake then mentioned he may have meant "birds of the battlefield." Chico then recognizes the camera in Snake's possession as being the same one Che used. Snake however, tells Chico that he can't keep the camera, but he does offer him the photos. Chico then notices Amanda and starts to worry about her. Snake explains that she's all right, she is being patched up at his place, and the only real injury she sustained is a broken leg.

Chico then asks if Snake has any cigarettes. Snake then hands him a cigar, although takes it back when he realizes that Chico intended to smoke it, stating that a cigar's "not for kids!" Snake then asked Chico if he knew where they took the cargo. Chico denied knowing anything about any cargo, so Snake rephrased his question as to how people get stuff up the coast up here. Chico then gladly explains: After cargo arrives at the harbor, it is loaded up into a barge and taken through the marshes. After the barge disembarks at the end of the marsh, they load the cargo onto a Jungle train past the Banana Plantation. After picking up the cargo, the train then goes past the Coffee Plantation over to a train station where the cargo is offloaded again, this time onto a truck. The trucks then disappear under a tunnel built into the mountain. Snake then questions him as to what is on the other side of the mountain. Chico states that no one knows, as none of his unit got far enough to find out due to it being protected by a spirit. Chico even states that he was camping near the tunnel when he saw it: Something so enormous that its shadow was at least 30 vara and walking on legs as big as trees at the terminal near the tunnel. However, he only saw it that one time. Snake then asks why Chico was near the railstop at the first place.

Chico admits he got into a fight with his sister. When questioned by Snake as to why Chico decided to camp after fighting Amanda, Chico changes the subject telling Snake that the train should be arriving by this point. Chico also states the train station isn't far: He just needs to go to the Coffee Plantation and then go north. Snake explains that the cargo being transported is likely to either maintain balance to the world or destroy it. Chico is confused. Snake then mentioned that the FSLN group used the Coffee plantation as a front for a Narcotics plant, but deduced that Chico already knew that. He also tells Chico that he understands, as even revolutionaries have to pay their bills, although it is hard for someone like Chico to swallow. Chico confirms that it is indeed hard to swallow, especially seeing how the route they are currently using to transport stuff is the same one as the one his dad used to smuggle drugs. He explains that they sold the drugs to the North Americanos and used the profits to fund the army and they didn't even bother to tell him. Chico then explained that he went camping because he often tried to sneak into the plant and set it on fire. He couldn't stand that they treat him like a kid, especially seeing how he's twelve. Snake deduces he didn't have the heart to set the place on fire, and explains that growing up means choosing how he lives his life. Chico shows reluctance because that would most likely mean leaving his family. Snake also tells him to treasure the photos as his memories of them.

Snake is about to get Chico out of the room, but Chico explains that even though he wants to get out, he can't face his unit after what happened. Snake the realized that he told them where his Compas was. Snake attempts to comfort him, as pain gets the better of everybody. Chico, breaking down out of guilt, expresses that he wishes he were dead. Snake then offers to put him out of his misery, and asks if he has any last words. Chico then tells him to shoot, as he is only going to kill a man. Snake then fires... but not at Chico. He instead wasted a bullet on a photograph of Chico, he then told him not to waste his life. He also told Chico that he "died" in the prison today, and that he is now a new man, and requests that he give that new life to him: Fight with him, and show him how strong he really is. He also tells him to dry his tears and promise him one thing: He never smoke until he grows older, as real heroes are never as polished as the legends surrounding them. Chico agrees. Snake then places a Fulton Backpack on him and activates him, with Chico wondering what it is.

Snake then departs for Cafetal Aroma Encantado's entrance. He then after sneaking by the soldiers and fultoning some prisoners, enters the mill. After bypassing the security detail of the Mill, he then arrived at El Cadalso. Unfortunately, five guards were already present at the train station, presumably to guard the offloads, forcing Snake to neutralize them as there was no other way to go by them. After neutralizing them, Snake inspects the train cars, while trucks were arriving. Snake then, with Kaz's help, found the car containing the cargo. Or at least, it was on there, but it was already loaded onto a truck. The truck then departed for the tunnel, although not before Snake noticed the license plate: "Centro America 64779 Peace Sentinels." Snake was about to give chase to the truck, but a T-72 Ural spotted him at the car and fired a round at it. Although Snake managed to survive the blast, the Car ended up being blasted into the Tunnel entrance, essentially blocking it and leaving Snake trapped and forced to fight the T-72 Ural and its escort unit.

After neutralizing the Tank unit, Snake has to backtrack to the prison facility. He finds a cracked wall near Chico's former cell and blows it up with C4, going over to the path to Los Cantos's canyon. Snake then has to cross a bridge that was apparently blown up. After crossing the bridge, Snake then arrives at the Los Cantos Ridge. However, he has to try and bypass security as a checkpoint was apparently instituted. After bypassing the checkpoint, he then arrives at Fuerte la Ladera, and has to evade several soldiers stationed at the old fortress. After doing so, Snake then arrives at the entrance to the Crater Base. Upon entering the garage, Snake tells Kaz that he has entered the facility and that there are rows and rows of truck inside the garage. Kaz then states that Snake check the trucks, since if this is indeed the place they delivered them, the truck should be close by.

Snake manages to find the truck, but they already offloaded the cargo. He then attempts to find the Nukes within the facility until he heard two people arguing upstairs. One of the men, Huey Emmerich, is protesting to something being done, as it was never part of their agreement. The other man, Coldman, tells Huey that the changes were already finalized. Huey then explained stated that the thing they were working on, as Coldman told him, was supposed to be a deterrent, in which it doesn't have to be used. Coldman tells him that he isn't arguing with Huey, as that still is their goal: To create the perfect deterrent, which is why Huey agreed to help Coldman on the project. However, Coldman explains that in order for a perfect deterrent to be achieved, it must be tested and they must show the world their strength. Coldman then recites the three key principles that ensure effective nuclear deterrence. First, the country has to have nukes. Second, the country must never fire them first. Third and most important in his mind, if someone is going to fire a nuke, the country has to strike back. Unless the deterrent they are working on follows these principles beyond a doubt, they will never accept their deterrent. Huey then reminds Coldman that deterrence is supposed to stop nukes from being used. Coldman then states that's exactly true, and thus the nuke they launch will be the last one they'll ever launch.

Huey then states that he won't let Coldman use his creation like that. Coldman then starts moving Huey's wheelchair, and tells him that his "creation" was never even his idea to begin with as Huey apparently stole the invention. Huey then retorts as Coldman starts moving his wheelchair at an alarming rate towards the stairs that Coldman was the one who got the bipedal locomotion from the Communists in the first place. Coldman then tells Huey quiet and not to bring up who stole which plans and do as he says. He tells Huey that if he completes the project and it is successful, he'll be the toast of the scientific community and celebrating for advancing Scientific progress and National Security. Huey refuses. As Coldman moves him to the very edge of the stairs, he tells Huey that unless they test it, Peace Walker is useless as a deterent. Huey tells Coldman that he used him. Coldman reminded him that they used each other, and that with the project's success, Coldman would get his old director's job at HQ back and Huey will get to "stand tall" with his colleagues. Huey tells Coldman he won't get away with it. Coldman then decides that he might as well keep his legs for himself, and then, much to Snake's shock, shoves Huey down the steps grinning. Coldman then tells Huey before departing that peace won't come to them and they'll have to meet it halfway, and declaring V for Victory. Huey tells him to stop, but Coldman just chuckles as he departs.

Snake attempts to help Huey up as Huey tries futilely to stop him. Snake asks if he is ok, and Huey desperately tells Snake that Coldman is going to launch a nuke. A gust of wind suddenly appears. Snake then enters the main theater and witnesses a mysterious device with a tarp over it being airlifted by the machine he witnessed before, along with a Hind D. Suddenly, a vehicle similar to both the flying machine and the Shagohod bursts in and attacks Snake. Snake, with Huey's advice, manages to defeat it and put it out of decomission. Huey then tells him that the machine that Snake just defeated was an unmanned weapon: A prototype, as a matter of fact, and he made it. Huey then formally introduces himself and states that he works, or at least, used to work, at the facility. Snake then tries to cover his actions by claiming that he is an entomologist. Huey doesn't recall entomologists fighting much. Snake then tried to explain that he went to Costa Rica to capture a Ulysses Butterfly, as he specializes in them. Huey doesn't recall Ulysses living in Costa Rica and asks if Snake meant a Morphos butterfly. Snake mentions that's what he meant, and he has to capture some before the Washington treaty goes into effect. Huey then mentions that Morphos butterflies aren't covered in the treaty. Snake remarks it must have slipped his mind. Huey then asks if Snake is feeling all right, and in either case, the Butterfly got away. Snake also asks if Huey made the huge butterfly. Huey both confirms and denies making it.

Snake then asks what the thing was. Huey mentions that Snake may not be an ordinary entomologist, explaining that the nukes were loaded into the machine that was airlifted out of the facility, and the Project was entering its final phase. Snake then asks what the project is. Huey then explains as they walk to his former office that the Thermonuclear warheads the group brought in, the bases scattered around Costa Rica, the mercenaries, the AI weapons, and all the research done up to this point was all for the project. The Peace Sentinels used the Irazu facility to develop the AI weapons frames. He tells Snake that the weapon he fought was Pupa, and there was also a flying model called Chrysalis and a Treaded model called the Cocoon. Their brains can process the motor control, target detection, attack, capture, and transport fuctions without aid from a human. However, their AIs can only follow basic commands. Snake then asked him why he built them in Costa Rica. Huey explained that the CIA wanted them, and invited him into the project a year ago. He also explains that Coldman is the CIA station chief of Central America, and used to be a hero during the Cold War's beginning. They called it the Peace Walker project.

He also explains that their plan was to create a new nuclear weapon: a mobile unmanned nuclear platform that contains a fail-deadly system that can automatically move into position and fire a retalitory nuclear strike. Plus, it is stealth-shielded from orbital satellites and radar, and thus can ensure that it won't be detected and destroyed in a pre-emptive nuclear strike. It's supposed to be the new deterrent, but the locomotion system has some problems with the environment. There is never a dry season in the Carribean, raining all year round, and the rainforests make it impossible to build roads. Huey then decided to go back to where it all started: Legs, walking power, and a mobile launcher that carries thermonuclear warheads that are more powerful and destructive than even the Soviet RDS-200s is what defines Peace Walker. Snake then realized that Peace Walker was the Basilisk that Chico saw. Huey mentioned that they did the assembly and testing in Costa Rica, with Snake realizing something familiar about it being a walking nuke. Huey then mentions that he sort of borrowed the idea from behind the Iron Curtain. Snake then remembers that he heard something similar from Granin: The missing link between artillery and infantry, a Metal Gear. Huey then explains that they need to mass produce the Peace Walker, and Coldman needs funding for it to be mass produced so he is going to conduct a test for Langley.

He then explains the scenario as Country X launches a nuke at Country Y. Country Y's leaders won't bother retaliating as they know they'll end human life if they did. Snake then deduces the weakness of deterrence is uncertainty of it. Huey confirms this and explains that this creates a loophole that Country X can exploit to launch the first strike. However, Peace Walker fixes that loophole by making nuclear retaliation not only a possibility, but also a certainty, as every time a nuclear strike has been initiated, Peace Walker can track the Nuclear launch and do a retalitory strike without question, and without needing human input to make the call. Huey then explains after Snake asks if he believes in Coldman that he actually just believes in peace through nuclear deterrence. He explains that his father worked on the Manhattan Project and put his whole life into that research, all to create the illusion of peace through deterrence. He also explains that he was born unable to walk, explaining that he had to face up to the nukes, but if they launch, all he worked for would have been for nothing. Snake then asks where they took the nukes. Huey explained that they were taken to the border, and that the final test is five days from then. Snake wonders where the base is.

Huey realizes that Snake is going to stop them, and explains it a bit of a hike, and he knows of another way he can halt the project, one that is surefire to work. It's not finished yet, as it still needs one more vital aspect that is currently underway: The Mammal Pod. The AI he worked on, the Reptile Pod, can only follow basic commands such as "Go there. Attack that." In order for it's intended purpose to work, Peace Walker has to be capable of analyzing the huge volumes of data and select an appropriate target for retaliation, similar to a cerebrum's human decision making. He explains that an AI expert named Dr. Strangelove is behind the development of the AI, and she's hushhush, and although very adept in making AIs, she seems to hate everybody. He then hands Snake a letter of recommendation as well as his ID card to acces the area that the AI is being developed, although he tells Snake not to read the letter. Huey also considers quitting the science business, especially seeing at the rate its going, he's already halfway to hell anyways. Snake then recruits him into Outer Heaven as he fits right in. Huey then remarks that it at least sounds better than what he did in this "paradise." Snake then gives him a fulton. He also explains that he used to be a Cold War tool, and they cut him loose. Huey seems to think that its almost deja vu that Snake's name is Snake. He then points towards the direction of the AI facility: A Mayan Pyramid.

November 19, 1974

Snake is nearing the AI Facility while riding a mule. Huey asks him how the mule is treating him. Snake mentions that he'll get to the AI facility by the next morning at the rate the mule is going. Huey tells him that he he needs to hurry as the AI may be complete at any point by then. Snake wishes he had a guide, so Huey had enlisted Paz to help him, as she knows the jungle pretty well. Paz then tells Snake to be careful in the jungle, even if he is a survival expert. She also tells him that the jungle is so foggy that Snake can barely be able to see the trees. It is also home to 2500 species of plants, 400 hundred of them orchids, 500 species of butterflies and over 400 species of birds. She also notes that the bedrock is solid enough to allow the Mayan temples to survive centuries of earthqukes. Huey also explains that security is still tight in the Jungle, and that asks if Snake still has his ID card. Snake confirms this.

Snake then enters a river to try and catch some fish. Huey tells Snake that after getting in with his ID, he's on his own, and as long as the AI remains unassembled, Coldman's plans are on ice. Snake laughs at the joke as he eats a freshly caught fish. Huey also mentions that the security at the AI lab itself is at the absolute minimum due to Strangelove's request. However, Kazuhira mentions that Coldman knows Snake is trying to seek it out to sabotage his project, so he's most likely raised security at the area surrounding the lab, so he warns Snake to be careful. Snake mentions that he will. Chrysalis then starts probing overhead. It then thinks it saw Snake until the mule ran from the suspected spot. After that close call, Kaz tells him to stay sharp, and Huey tells Snake that the lab is a few miles to the north, and he shouldn't let the AI's completion happen.

Snake then gets dressed quickly and slides down the slope into the jungle area of Selva De la Leche. After bypassing the security detail of the jungle, he enters the hillside. He then bypasses any security detail in the hillside when he arrives at Catarata De la Muerte. Unfortunately, a Hind A as well as some troops are waiting for Snake at that area, forcing Snake to battle at the area. After neutralizing the Hind A unit, Snake continues on to the bottom of the cliff at the Selva De la Muerte, bypassing security detail wearing ghillies near the ruins and arrives at the top of the cliff. After bypassing the security detail in the area, snake arrives at the Ruinas de Xochiquetzal. While travelling through there, he finds a woman at a tree with a Quetzal on it. The woman then asks "Ah, Tu M'As Trouvee! C'est Moi Le Loup!" Snake realizes that the woman is speaking french, and responds "Fini De Jouer A Cache-Cache. Dis-Moi Qui Tu Es." The woman then tells Snake not to kill her. Snake mentions she's not a solider. the woman confirms that she is actually a tourist. Snake then asks who she is and why she is at Costa Rica.

The woman then introduces herself as Cecile Cosina Caminades. She then realizes that Snake is not one of the soldiers that was hunting her, and she tells Snake to put down his gun and asks who he is. Snake, in order to cover his reasons for being in Costa Rica, tells her that he's an ornithologist. She then accuses him of being a poacher. Snake then explains that the gun he has was actually for self defense, and just wanted to look for the one rare bird in Costa Rica. She then asks him if the bird he is looking for is the Quetzal. He confirms that it is, and that while it is rare, it was not covered under the Washington Treaty. Cecile then tells Snake that the resplendent Quetzal is marked as a red-listed animal. Snake then mentions she knows her stuff. Cecile explains that this is because she is an Ornithologist herself. Snake then remarks that they could exchange notes later, and offers her a Mate. After drinking the Mate, she thanks Snake for saving her. She explains that she went to Costa Rica because people mentioned that it was paradise: There were more rare birds in Costa Rica than anywhere else, and that no war is at Costa Rica, essentially making it every birder's dream. However, she remarks they were wrong.

Snake then asks why the soldiers were after her. She then remarks that she should never have recorded that "voice." Snake is curious as to what she meant by that. Cecile explains that she was going through the thicket trying to record the Quetzal's song, and saw an immense ruin, which resulted in her recording The Boss's voice. Snake then asks if she made that tape. She then was captured by a woman, but she seemed kind to her, giving food to her and bathing her while imprisoned. She was blindfolded, and the woman then told her that she will be back home in a month, but advises her not to remove the blindfold before then. Snake then correctly deduces that she didn't heed the advice. Snake then wondered how she escaped. She explained that she waited for an opening and stole an ID card. She also remarks that they almost caught her, but she managed to elude them. However. she succumbed to exhaustion after getting to that spot, because she was barefoot and no supplies. She then apologizes to Snake for drinking all of the Mate. She then asked if she saw anybody else in the facility. Cecile says that there was another woman, but she couldn't actually see her due to the blindfold, but she did often sing a very strange song. Snake then asks Cecile if she knew what kind of person this other woman was. She doesn't know, and she doesn't even know why she was held prisoner. They also confiscated everything, including her money, equipment, supplies, and even her passport. The only thing she was even allowed to keep was her undergarments, which even that was to ensure she didn't escape. She also can't return to Paris like this, never mind could, as she cannot prove who she is.

Snake then offers her to stay at Outer Heaven, as she doesn't need a passport or even a name. If she wants to return to Paris, she can return any time. She mentions that what she need is a shower, a change of clothes, and a cigarette. He offers her a Cuban cigar. She prefers unfiltered french cigarettes, but she has to make due due to the fact that Snake is fresh out, although he does mention that she can have all the french cigarettes she wants at Outer Heaven. She remarks that it's like heaven. Snake mentions it's not quite heaven, but its close. Snake then asks if she saw anything when she escaped the facility, as she had to see something due to removing the blindfold. She mentions that she did see a room with a lot of machinery and computers like in a university. He also asked about the room where she heard the voice if there was anyone in there. Cecile denies actually seeing anyone, but there was a large tube in the back, and when she approached it, she heard a voice. She mentioned that the voice was saying "Jack" over and over. Snake then recoils in shock, as he realizes what this means. Snake then tells her that he has some business to take care of. She complains about his apparently leaving her, and he mentions that friends are going to pick her up. He then calls Kaz for a recovery: A civilian. Kaz then explains that the Mother Base no longer has any room for any civilians. Snake asks if there isn't any room for a blonde parisienne. Kaz is surprised and asks if shes "pretty foxy?" Snake tells him to see for himself, and that if what she is saying is true, she might also be Paz's missing friend, the one who made the tape. Snake also advises that she listen to the tape, just to make certain that she is. Kaz remarks that Paz might be happy to know that. Snake then departs for the facility upon Kaz's request, although not before placing a fulton balloon on her and asking if she "ever felt like a bird before."

He then arrives at the facility, although Huey's ID card does not bypass the security device. Snake then is forced to return to Catarata De la Muerte and knock out a guard who has the proper identification. He then returns to the AI facility and scans it in. This time, it is a success. Snake travels through the grounds of the lab, and is surprised to see The Boss's horse at the area. He hears The Boss's voice claiming that it "looked like death wasn't ready for Snake yet." He turns around and sees a woman wearing a red coat. He then guesses this must be Dr. Strangelove. She mentioned that she was waiting for Snake, without joy or pleasure, for the one she despises. Snake then pulls up his gun, telling her not to move. Strangelove doesn't flinch, and just remarks that men and their guns are all say the same thing. She then asks if Snake is here to destroy her research. She then confirms that she knows that he plans to destroy her research, just as she knows what he did ten years prior. She goads him into killing her like he killed The Boss. Snake asks her what she means.

Strangelove then asks if he still wears the title "Big Boss," a reward for what she calls filthy murder, with pride. She told Snake that he chose a shadowy country over the mentor that made him who he was, and brought despair to good soldiers all over the world. She then questions how he could call that "loyalty" if he used the pretext of a mission to kill a true hero. Snake explains that The Boss stole a nuclear warhead and used it on the Soviet Union, and killing her was the only way to stop a nuclear war, which is the truth as it was given to him, and was his mission. Strangelove explains that she is the one The Boss abandoned when she left this world, and that she won't rest until she gets the answers from the woman she loved. She mentions that they both are the same as they are the "walking dead." She also reveals that she brought The Boss back, albeit as an AI. She then had Snake use snuff to enter the facility, as it is a non-smoking environment. She tells snake that the AI is her baby, her morphos, and that it is an Imago, the most complete sense of the word. She then tells Snake that he shouldn't try anything foolish, since as long as they are in there, Strangelove will reduce Snake to carbon at the press of a button.

The Boss then mentions wonders who Snake is, saying that he looks like a man, a war fighter. Strangelove explains that she called it the Mammal Pod. She also explained that in order to participate in the project, she demanded access to all information regarding The Boss. Everything the CIA had: The Boss's personal history, military records, physiological data, correspondence, the files for every single operation she participated in, every decision she made at every possible turn, what she took, what was taken from her, her pain, her pleasure, her joy, her sorrow, her life, her death, and even Snake. She explained that Coldman needed a mad-based AI that can deliver an effective retalitory strike against the most appropriate target in response to a Nuclear attack from a hypothetical adversary. An unmanned device to act as a deterrent capable of making decisions and taking the actions that Humans could not do. She then guessed that he wanted a cool, calculating machine programmed to inflict sure and utter annihilation upon the enemy no retaliation. Coldman told her that he actually needed the thought patterns of the very finest rational mind: One that thought on a global scale and took past and future into consideration, reaching the best decision no matter how painful. She deduced that The Boss was logically the one who best fit the description. However, her true goal was to clear the Boss's name. She wants the truth, not fabrications, as to why she, a legendary hero, was forced to betray her country, and killed by her most beloved desciple. Snake denies wanting to know the boss's last will, and apparently accepted that she died a traitor. Snake then asks if Strangelove wants to recreate the Boss's last wish. Strangelove then tells him to ask her herself. The AI pod then opens, as Snake nervously enters. Strangelove then tells him that if he can, he extinguish that noble soul once again. Snake then passes out while in the AI's interior. Snake then has a flashback to when he encountered her at Dremuchij North. Snake then wakes up at the AI facility's grounds, and sees a Hind carting off the AI. Suddenly, Chrysalis emerges from behind the temple. Snake then battles and destroys it.

November 21st, 1974

Snake travels over on The Boss's horse, Huey then asks Snake how the horse is doing. Snake remarks that the horse isn't doing too bad, and his current pace made it surprising that the horse is even over 20 years old. Huey then reminds Snake that the horse used to belong to The Boss. Snake then speculates that a part of The Boss became a part of the horse. He then arrives at what is apparently a mining facility. Huey then explains that the platform and the AI are supposed to be assembled at an underground base that is disguised as a mining facility, and is most likely the place they will use to do final testing. He also explains that destroying the platform itself will be difficult, so he heavily suggests he demolish the AI instead, and begs him that, no matter what he does, he doesn't let Peace Walker launch a nuke. The Horse then departs from the cliff after Snake scaled down it.

Snake then sneaks through the mining facility until he reaches the Mining Pit. He spots the Peace Walker platform. Unfortunately, the Cargo Elevator began its descent. Snake attempts to rush to the elevator, but a Kidnapper drone spots him and sounds an alarm, causing a unit of 24 snipers to come out and battle him. After neutralizing the unit, Cocoon then arrives at the scene, sliding down the slope of the pit, forcing Snake to dodge the behemoth of an AI weapon. Snake then fights the AI weapon and decommissions it. Its destruction also unlocks the door to the underground base. Snake then sneaks through the AI weapons hangar, evading the cautionary alert security detail. He then took an elevator to the first part of the Underground passage. After successfully sneaking through both parts of the underground passage, Snake made his way into the second AI weapons hangar. Strangelove tells Coldman that she needs more time to activate the AI pod as the Reptile Pod and the Mammal Pod needed to act with unison to work. Coldman warns her not to take all night. Strangelove then requests that she perform a final systems check due to having concerns with the dummy data for the mammal pod, and suggests that everyone take a break.

Snake then seizes this opportunity to sneak onto the platform and into the Mammal Pod. The Boss then asks Snake what is wrong, as his body temperature dropped. He tells her its nothing. The Boss then asks if he's here to kill her, as his pulse quickened slightly. Snake merely states that its because the place is chilly. Snake then asks her if she has any regrets about her final mission in Groznyj Grad. She remarks that she doesn't recall such a mission. Snake then explains that she betrayed the United States, and then he killed her. She still doesn't remember the mission, having never received a debriefing. Snake then asks her if she defected on her own free will. The Boss still doesn't remember the mission. Snake then points a gun at her AI core, telling her that she's not The Boss and that The Boss is dead. As The Boss's AI warns him to not do it, the AI Pod's casing opens up and several soldiers tell Snake to drop the gun. Strangelove then explained that she deduced that Snake entered the AI due to giving the same response as it did back at the AI lab. Coldman then tells Snake that it is an honor to meet him again. Snake then remarks that he saw that Coyote before. Coldman then tells him to call it "Lobo." Snake then tells Coldman that "Lobo" smells more like a rotting corpse to him.

Coldman then punches Snake in the face. Coldman then tells Snake that he knows all about Snake, rhetorically asking "Tselinoyarsk, 10 years ago?" Snake reacts with surprise that Coldman was involved in the misson. Coldman then reveals that he was more than just "involved" in the "mission to eliminate the traitor," as he was the one who planned the whole thing while smiling sadistically. Snake then asks why a suit like Coldman, who is supposed to be at Langley, would be at Costa Rica. Coldman then explains that it was because of what the CIA does best: either have people in the know keep their mouths shut, or send them off somewhere so they can talk all they want and no-one can ever listen, revealing that his becoming Station Chief in Central America was nothing more than an excuse to exile him from the United States. Snake then asks if his involvement in the Peace Walker project was so he could get back on the CIA's good side. Coldman explains that that's not even his full plan, as what he really wants is a new world order. He explains that ever since the Cuban Missile Crisis, the structure of the Cold War was coming apart at the seems, citing detente, NPT, SALT, and TTBT as examples of this. He then declares that a new age will dawn, and that age will be Peace Walker, an infallable nuclear deterrent system that the patience and the cold logic of a machine will come to play a vital role. Snake then realizes that his plan is to place Humanity's sins on machines. Coldman then references the time during the Cuban Missile Crisis when the commander of a Russian sub refused to launch a nuclear-loaded torpedo at an American destroyer, and that the man was remarked as a hero because he didn't have the nerve to kill fellow human beings and as a result prevented a nuclear war. Snake then deduces that a machine would still push the button without hesitating. Coldman confirms this, stating that it would make a real deterrent in that case. Snake then tells Coldman that people hesitating and losing their nerve is the very reason why deterrence works in the first place. Coldman states that this doesn't work, as humans make mistakes. Machines, on the other hand, don't, which is why a fully automated, mechanized deterrent system as Peace Walker is needed.

He also explains that once the system is embraced, Langley will turn to Latin America as the new Cold War. The Peace Walker unit will be mass produced and spread throughout Central America's Carribbean coast, including Honduras, Nicaragua, Costa Rica, and Panama. He also will have Peace Walker target all of the Americas: North America, South America, and the West Indies, thus bringing law and order back to America. Snake then guesses that Coldman will still be calling the shots. Coldman explains that the age of heroes is over, buried alongside The Boss and her bankrupt beliefs, and that the only true heroes will be machines. Coldman then mentions that no one knows that better than Snake, except perhaps his partner. He also reveals that he knows about the Militaires Sans Frontieres and that Snake invented it as a new system, even admitting that it is an admirable one. Snake asks if that is meant to be an offer. Coldman states that it isn't, and reveals that he plans to kill off both Snake and the Militaires Sans Frontieres in order for his new system to be sold. Strangelove then mentions that he give Snake to her, as they still have some data needed for Peace Walker. Coldman agrees, although he advises that she not waste too much time, as he already received word that the SALT-II talks are on schedule, so he needs to complete Peace Walker on time. Strangelove then tells Snake that he will give her the answers about The Boss that she needs. Snake then yells at her to shut up as The Boss is dead.

Snake then CQCs a few guards, as well as killing some from friendly fire getting in the way, and then rips off Strangelove's ID film badge to her shock. Snake then gives up when four guards point guns at his back. Snake then has a flashback to The Boss's speech during their encounter at Dremuchj North. Snake then wakes up being hung by his arms and water splashed onto him with Strangelove waking him. She admits that she doesn't care for Coldman's greed, and she is only interested in the truth about what happened in regards to The Boss. She may be a scientist, an AI developer, but she is not an AI. She also remarks that she finds what she is able to do distasteful as she is a scientist, but she is going to get the answers that make sense to her. Strangelove then demands that Snake tell her whether she truly died for her country or if she was truly a traitor. She calls him a liar and demands the truth. She also tells Snake to brace himself, as she is going to use a device to stimulate his nerves. Snake sarcastically remarks at the nature of the torture. Strangelove deduces that he may have been trained to withstand pain in torture, but he probably hasn't been trained in the nature that she will use right this moment, and tortures him the first time. He also tells her that she can do whatever she wants to him, knowing that she hates him, but it won't change the fact that he killed The Boss. Strangelove explains that she knows that it won't, and that's not the reason she's doing this. She said she only wants what she doesn't know, which is his motive. Snake then tries to mention that she not only betrayed her country, but also him as well. Strangelove then points out some fallacies to his claim. Namely, if he felt betrayed by her, why does he still wear the bandana that originally belonged to her, and why did he apparently inflict a "s"-shaped scar across his abdomen (Snake then shouts at her not to touch it).

She demands once again that Snake admit that The Boss sacrificed her life for her country, a place she didn't care a soul for, as well as for him. She also mentions that her primary motivation was not about hatred for Snake, although she does still hate Snake, but in actuality just so she'll know what The Boss fought for. She also asks why he must continue hiding it, as he's no longer one of the CIA's lapdogs. Snake tells her he won't let her revive The Boss as an AI, as she may also be torturing him to do that as well. Strangelove then decides to increase the voltage, knocking him out with Strangelove remarking that she may have overdone it. Snake then awakens in his cell in the torture chamber, and discovered that he still possesses her ID card, and after stealing a electromagnetic lockpick from the sink, he sneaks out of the cell and out of the torture chamber. Snake then retraces his steps back to where he was initially captured. He discovers that Coldman had somehow kidnapped Paz, remarking that he should have taken care of her at the Supply Facility, as she was responsible for getting Snake out there in the first place. He also brags to Snake that Peace Walker and the Mammal Pod is complete. Snake is surprised that the Mammal Pod was finished. Strangelove explains that while he was like The Boss in that he was loyal to the end, he should have broken from the torture as his silence was exactly what she needed to complete the AI. She explains that ten years prior, her mission was to be killed by Snake, and Snake's mission was to kill her. Because of this, The Boss's life is restored as the Mammal Pod, and personally thanks Snake. Snake remarks Strangelove as being crazy.

Coldman then decides to let Snake in on a little secret: he has already decided on Peace Walker's first target. He decided to use it in an offshore area of the Carribbean. After it is tested there, the trade winds will then scatter the fallout all throughout the region, causing Fish and Crops to die off and thus leaving many free hands to contribute to Peace Walker's mass production. He then "realizes" with glee that "coincidentally" someone built a fortress there, asking rhetorically who would do that, and it is right in the middle of the target zone, deciding all the better to test out the CED. Snake then furiously calls Coldman a bastard. Coldman then wonders who will miss a bunch of ragtag pirates in the Carribbean. He states that before he starts to test Peace Walker, he will show the White House that Peace Walker is versatile by having it travel the Carribean Coast on its own, traversing both communist and guerilla territory, any terrain, and capable of launching wherever it goes, thus making the unstoppable untouchable perfect deterrent. Snake then reminds him that America and Russia aren't the only ones with nukes, so the Cold War's days are numbered. Coldman then sees what Big Boss is referring to and says he is right, as while America and Russia were wringing their hands on nuclear deterrence, China, France, and even India surpassed them in nuclear development, and it will be a free-for-all arms race below the surface, making the threat of nuclear war even more serious, thus deciding to put an end to it right then and there with Peace Walker. He explains that they need nukes, controlled nukes, not to mention, to have peace. Paz declares it a lie. Coldman then mentions that this will restore order, and create a new cold war, but in order for the world to see the genius of his plot, he must launch Peace Walker.

Paz, Coldman, and Strangelove then depart through a door as the cargo elevator carries the newly activated Peace Walker up to the mining pit. Miller then tells Snake to stop it. After a grueling fight with Peace Walker, Peace Walker, after a Hind D appears, transforms into a quadrupedic machine and walks over the mountain. The Boss's horse then returns to Snake and helps him give chase to Peace Walker and Coldman's Hind D. Huey then explains as they saw it is still in range that Peace Walker's top speed is 25 kilometers per hour. Snake then remarks that Miller can at least do 30, and Miller reminds him that Paz is onboard the Hind, and they must protect the client. Coldman then mentions that the day is dawning, and tells the Hind D to depart from Peace Walker. Snake then gives chase to Peace Walker, evading its attacks as well as trees collapsing around them when they enter a forest. The Boss's AI then tells them to "go home." Coldman then says that Peace Walker is approaching the border, and gleefully tells Snake that he'll see him later. Miller tells Snake with shock that its approaching the border. Snake and the horse then try to scale the border, with Snake stating that they just need a little bit more. But the Horse slips and it along with Big Boss fall down. Snake tumbles away, and gets up unscathed, although the Horse is a different matter entirely. Snake then tries to scale it himself, cursing himself. Snake then sees that Peace Walker is already going across the river, with Snake disappointed that he failed to stop it.

November 23rd, 1974

Amanda then contacts Snake through the radio and tells him that in order to get to Nicaragua, Snake needs to take the gondola west of the river until he hits the northern bank, and that she arranged a guide to help him get close enough. Chico then offers his condolences towards The Boss's horse, remarking that it was pretty. Snake then has flashbacks to when The Boss was defeated and he executed her, while he was poised to euthanize The Boss's horse. After he euthanized him, Snake then has flashbacks to when EVA told him on the recording The Boss's true mission 10 years ago. Snake, having crossed the river, spies on the base, and mentions that the gate doesn't look too bad, meaning that something else is going on. Snake then tells Miller he might need some help getting in. Snake then disguises himself as a crate and manages to hitch a ride on the back of a cargo truck into the back gate.

Snake then calls Miller telling him he managed to sneak in without a hitch. Miller then tells him that there is an airfield on the other end of the base, at the northwestern shore of the lake, which is where Peace Walker will launch. Miller also tells Snake that the Communication Tower in front of him is most likely where Peace Walker is going to be controlled from. Snake asks Miller if he should evacuate, given the fact that Mother Base is being targeted by Peace Walker. Miller then tells Snake that they won't, as they believe in Snake anyways. Snake agrees, as he kinda got attatched to the Mother Base, anyways. Upon inquiring to Miller about Amanda and her unit, Miller explains that they've been evacuated, as the MSF cannot risk them being involved any longer. Snake agrees, as they have their own fight to fight. Miller also reminds him that the Peace Sentinels have Paz. Snake tells him he hasn't forgotten. Miller then tells Snake that they are prepping a backup unit to aid Snake, just in case, and that in the meantime, Snake has to prevent the launch.

Snake then sneaks the base, and Miller is then shocked that a Kidnapper Drone is near their starting position. Snake then travels left and discovers a man wearing a similar suit to Strangelove as well as wearing Balaclavas: Soviet Soldiers! Miller also realizes this and realizes that he has a bad feeling about what is going on, as Soviet Soldiers shouldn't be on an American Base. Snake then manages to evade the soldiers as well as get to the first elevator from the back gate down to the small maintenance dock. Snake sneaks through several more Soviet soldiers, and Snake then sneaks onto the rooftops, where after crossing to the other building, he managed to enter the security recording room. He manages to locate Paz via one of the panels. Snake then asks Paz if she iscan hear him. Paz confirms that she can. Snake asks her where she is, and she remarks that she doesn't recognize the place. She also told him that Coldman left for the Comm tower in order to input the final data.

Unfortunately, sirens managed to sound that made Snake realize that they located him. Miller then contacts Snake from a squadron of UH-1 "Huey" Iroquois telling him that all of MSF is coming to him. Snake is surprised at this, and Miller mentions that there is a skeleton crew, mainly Huey, running the base, and that the rest of MSF is coming to Nicaragua to aid Snake in his mission with several tanks, vehicles, and ships. Snake mentions that the base is crawling with Russians, so he may have to force his way through. Miller then asks what is going on there, and Snake remarks that he's "damned if he knows." Miller then tells Snake to get there as quickly as he can, as he's nearby. Paz then mentions that as an angel of peace, she'll give aid to Snake spiritually, and gives him the peace sign. Snake then rushes through the rooftops back down to the small maintenance dock, and then heads north to the main maitenance dock. He fights off any Russian Soldiers as well as Kidnapper drones, as well as getting through to the underpass. He then has to hurry as the gate at the other end is closing. After managing to make it through, Snake then managed to get onto an elevator to the heliport. Unfortunately, a Hind D arrived as well as a backup unit, so Snake was forced to take them out.

After defeating the Hind D as well as the unit attacking him, he then entered the garage door to the Comm tower, and encountered Paz and Coldman, as well as dozens of Russian soldiers in the main area. Coldman tells Snake he's already too late as he already inputted the false data. Snake wonders what Coldman meant by "false data." Coldman explains that since Peace Walker is nothing more than a deterrent, a weapon built for peace, it is completely incapable of commencing a pre-emptive nuclear strike, and can only awaken to retaliate. As such, they need to trick it into believing that an attack would be inevitable and then launch a nuke, thus technically doing a pre-emptive strike without knowing it. They first input imaginary data of a possible Soviet nuclear attack on the United States mainland through Strangelove on the main computer. After assessing the data as a threat, Peace Walker will immediately enter retaliation mode and select the optimal target from a pre-defined list.

He also mentions they reverse-engineered the data to have Peace Walker inevitably choose Mother Base as the target. Snake realizes that Coldman is really going to do it. Coldman then states that Peace Walker will be the first and last nuclear retaliation of the Cold War, and that it will be the only way to ever come close to true peace, and all he has left is to input the confirmation code. He then reveals that he has a briefcase handcuffed to his arm as well as a red diskette that he is about to insert into the briefcase. Snake points his rifle at Coldman in an attempt to stop him, ignoring that the Soviet soldiers are currently pointing their weapons at him. A voice then tells him to stand down. A man then walks to Coldman telling him that he's late.

Snake and Paz are both shocked to realize that the man is actually Professor Galvez, which means he was actually working for Coldman all along. Galvez then tells Coldman that taking over the U.S. Missile Base took longer than expected. To Coldman's surprise, every single Soviet soldier in the room then points their rifles at Coldman. Galvez then tells Coldman that they supplied the technology to him, and in exchange he supplied the Soviet with their land and soldiers, and that Tsentr could not have accomplished so much in so little time. Coldman then briefly refers to Galvez as Zadornov while cursing him as a backstabber. Galvez then reminds Coldman that Russia and America were already enemies, so it shouldn't be a surprise that they didn't actually have loyalty to his company or to the capitalists.

Galvez then explains what he wants: He is going to have Peace Walker launch a nuclear weapon, only this time, the target will be Cuba. Coldman, shocked, tells Galvez that he wouldn't have anything to gain by launching at Cuba. Galvez corrects him as it will actually be Coldman, and America, who will launch at Cuba. Galvez explains that, as Peace Walker launched a nuclear weapon from a United States owned missile base located at Nicaragua, a country with a pro-American regime, towards Cuba, which is one of the Soviet Union's biggest allies, the international committee will think America had launched it at Cuba, and as a result anti-american semitism will spread throughout Central America, splitting North and South America apart, and after that win the Cold War, just as the Kremlin intended. Coldman angrily calls Galvez a backstabbing son of a bitch.

Galvez then brings Paz over to him and places her a gun into her arm, telling her to shoot Coldman. He then reveals that his real name is actually Vladimir Zadornov, which his first name is russian for "Ruler of Peace" and then tells her to do as she was told by him. Coldman fearfully tells her not to do it. Vladimir then reminds her what Coldman did to Paz in the Supply Facility. Coldman remembers the scars that were inflicted on her, and apologizes to her. Paz, despite harboring hatred to Coldman for what he did, simply could not go through with it. Vladimir then remarks that she truly is a child of peace. He then suddenly raises the gun arm up and shoots a pleading Coldman twice in the chest. Vladimir then jokingly states that retribution could only be delt with a "dead hand." Coldman then angrily tells Vladimir that he missed on purpose. Vladimir then reminds Coldman that his part isn't done yet and forces him to place the red diskette into the briefcase. Vladimir then tells Strangelove that she has to change the target to Cuba, as well as threatening that if she tries anything to resist, he'll crush her after he crushes her "beloved." Vladimir then turns to Snake, telling him he's been watching him and he surpassed even his own expectations of Snake, remarking he is a true commandante.

Snake is confused and shocked as to what he is talking about. Vladimir then ask him why does he think he summoned him to Costa Rica and make contact with the FSLN group in the first place. He explains that a true intelligence officer never gets his hands dirty so he had used Snake to get a revolution done. Snake then realizes he's talking about Amanda and the Sandinistas. Vladimir then congratulates Snake on taking a ragtag group of rebels and children and turning them into a formidable army, and that Snake will now truly become the world's most complete human being. Coldman then realizes that Vladimir is referring to Che Guevara. He explains because of Che's death at the hands of the CIA, the Sandinistas will rebel and try to wrestle Nicaragua from America, and then the launch at Cuba will be the last straw. After an announcement that the Mammal Pod's data entry has been completed, Vladimir tells Snake that, just like Che, he'll die at 39. He then mentioned that legends are merely fiction, and Snake will die just like The Boss died: An eternal fraud.

However, before he could execute Snake, both the MSF and the FSLN storm into the room and take out the Russian Soldiers. Amanda then forces Vladimir on his knees and holds him up. Vladimir questions why Amanda would point a gun at her own comrade. Amanda then tells Vladimir that the FSLN will no longer be a puppet for the KGB, and they will win their own victory. Chico then shouts "!Hasta la victoria siempre!" Another member of the FSLN unit then tells Amanda that they made it back into Nicaragua, accomplishing what they planned to do, before correcting himself and calling her Commandante. Another Sandinista soldier asks if Snake is hurt, to which Snake tells him he isn't. Amanda then calls him "Vic Boss!" causing all the soldiers, FSLN and MSF, in the room to chant Vic Boss and Big Boss in celebration. Snake calls Amanda a regular Joan of Arc, Amanda denies it telling Snake that he's the hero. Snake then reminds her that she and her unit saved him, so they are the true heroes. Amanda then tells Snake she didn't think he was a softie. Snake then thanks her and remarks it's good to see her, intending to shake her hand. However, Amanda decides to hug him instead, with Huey back at Mother Base watching through the monitors.

Shortly afterwards, everyone in the MSF left to return to the Mother Base to celebrate. Miller tells Snake that Paz will be staying at Mother Base until she is back on her feet. Snake also asks about "the Professor." Vladimir is currently being held at gunpoint by a MSF soldier as Miller tells Snake that they are going to find him a nice comfy cell. Miller also explains to Snake that Coldman is in critical condition as he lost a lot of blood, and Coldman may not make it to Mother Base. Snake then asks about Amanda's whereabouts. Miller tells her that she's with her Compas, and that she'll regroup with MSF later to celebrate the temporary peace. Snake then tells him he'll catch up later, as he has some unfinished business to take care of. Miller asks if it has anything to do with the AI. Snake tells him that The Boss's AI is a fake, so he's going to bury it. Miller then mentions that he'll save the champaigne until he gets back, and departs.

Just as Miller leaves, Strangelove then arrives at a truck, telling Snake she was never forced to bring back The Boss as an AI, as she truly did want to see how things turned out, how it really ended. Snake then reminds her that The Boss is dead, which Strangelove disagrees with. Snake mentions that some truths are better left buried. Strangelove then encourages him to admit that he also wants to see the truth as well. She also tells him that The Boss's AI will tell him the truth. She also thanks Snake for stopping the Peace Sentinels, as well as apologizes for what she did earlier. Snake tells her to "forget about it." Strangelove tells him he's too kind, and encourages him to get in the van. Meanwhile, Paz is crying on the MSF chopper, with Miller lecturing Paz that she shouldn't pick up a gun unless she knows how to use it, as aiming a weapon alone doesn't make it a deterrent. He also reminds Paz of her part of the agreement as an angel of Peace that she leave the guns to the MSF. Miller tells her that their mission is complete as the army is leaving Costa Rica. Paz then thanks him and gives him the peace sign.

Unfortunately, Coldman starts using the football, inputting 1, 9, 7, 6, and a butterfly key on the keypad as Paz and Vladimir watches on in shock. After inputting the code in, he chuckles dementedly to himself, with Miller wondering what the noise was. Peace Walker then starts to activate. Miller then holds up the briefcase that Coldman used and angrily asks what Coldman did. Vladimir then remarks angrily that he should have killed Coldman when he had the chance. Coldman then states that "NORAD's nightmare is about to begin." Miller reacts in shock. Coldman then explains in labored breaths that not only can Peace Walker determine retaliation data based on enemy nuclear strike data, but it can also transmit said data to third parties as well. Miller then realizes what is going to happen and calls Snake. While on the way to the Peace Walker unit, Snake and Strangelove pick up Miller on the line, who tells them they have a big problem, as Peace Walker's nuclear launch has been activated by Coldman.

Snake guesses that the target is still Cuba. Miller confirms this, but he also reveals that that's not even the worst part: Coldman had screwed them all over when activating it. Coldman, over the radio, explains that when Peace Walker was activated, the False Data programmed into Peace Walker's AI was then transmitted to NORAD. He also explains that it transmits the data using a MLF signal, meaning not even an EMP can't block out the transmission. Miller explains that there will be no way to tell the difference between the real thing and the fake data from the radar. NORAD doesn't have any idea that it is all a ruse generated by Peace Walker, and that they'll think it's a real Soviet attack. Miller then tells Snake that NORAD, upon receiving the data, will pass it to the National Military Chaim of Command, with Snake realizing before Miller could state it that this will also mean that Washington will be forced to decide whether to retaliate or not. Miller also mentions that this is going to get ugly, and if they don't stop it, they might have a retalitory chain-reaction to look at. Coldman then assures them that the nightmare will end soon. Miller then asks what he means by this. Vladimir then realizes and explains that Coldman's aims are to have the American Government see the importance of Peace Walker, as humans don't have the will to launch nukes. Coldman then continues to assure them that everything will be ok, as they'll never retaliate due to only being human.

Snake then asks Miller where the President is, to which Miller responds that the last he's heard, he's attending the SALT-II talks at Vladivostok, Russia. Snake then realizes that with Ford gone, the next person in the chain of succession of the Executive Branch is given the Nuclear Launch Authority. Miller states that the Vice President is gone, as well, which leaves the Speaker. Coldman then tells everyone that neither the President, nor the Vice President, nor anyone has the courage to push the button, as they aren't willing to enter history as the Great Destroyer. He also goes so far as to claim that they care far more about their reputations than for their lives. Strangelove then mentions that the US Government may not have the willpower to launch a Nuclear Strike, but Peace Walker is loyal to the mission above all else, and that she knows that retaliation is guaranteed if deterrence is to work. Coldman then declares Peace Walker to be the perfect deterrent. Coldman also admits that Cuba would not have been his first choice of targets, but he cannot make peace without breaking a few eggs. He also declares that Peace Walker's retaliation is inevitable, thanks to its false data. Miller declares Coldman to be insane as his actions won't end there, and in fact is making an all-out Nuclear War possible, if not inevitable.

Snake then demands that they find out whats going on at NORAD. Strangelove explains that Peace Walker is currently patched into NORAD, so with the right equipment they could listen in. Huey then remarks that he's on it, hacking into Peace Walker's transmission and broadcasting it. At Cheyenne Mountain air base, NORAD finds the data. The NORAD Operator tells the NORAD Officer that he has picked up unidentified targets, with the current apogee being 20 degrees and the estimated time of retry is 2250 Zulu. The NORAD Officer then asks if the operator made contact with the President with the information. Another NORAD Operator then mentions that the Coverall is not responding, the Warning System checks out, there are no natural occuring signatures detected, and that the data is treated as reliable. Snake then demands Coldman to cut the data transmission, as they can't say for certain that Washington will retaliate. Coldman, while drawing his last breaths, tells them that the only one who knows the Abort Code is himself, and that no one can turn it off if he dies. Even if they do strike back, he's going to be dead long before then, and he can only pray that his theory, his peace, is proven right. He then struggles to make the V-for-Victory sign as he says "Peace." He then dies with the briefcase collapsing to the floor. NORAD then states that they are going into DEFCON 3, and demands that they get SAC on the phone. They then contact them and state that this is Crystal Palace, and they should prepare for an emergency meeting. Huey then tells everyone that NORAD has just reached DEFCON 3.

Miller then tells Snake that they have to stop Peace Walker, as the nukes and the fake data transmission is coming from it. Strangelove tells them that the only way to do so is to destroy it. She then notices that Peace Walker has just entered launch mode, meaning Peace Walker has made her judgement and the target is Cuba. Miller then tells Snake to don't let Peace Walker launch the Nuke. Snake then fights Peace Walker and after a grueling battle, Peace Walker stops functioning. Miller then notes that the Nuclear Launch has been stopped, and thanks Snake. Snake then asks how NORADs doing. Huey then tells them it's not going so well: a transmission from NORAD HQs states that BMEWS are continuing to track the targets on radar. The DSP satellite status is green. They are also still assessing the data as reliable. Lastly, the Chairman of the Joint Chiefs of Staff, a representative of the Secretary of Defense, and various members of Congress have arrived at the NMCC. Huey then explains that Snake only damaged the drive system, and the data uplinks are still intact. A NORAD Operator confirms from the data that there are 1,500 ICBMs crossing the North Pole and are targeting the West Coast. The NORAD Officer then commands that they go to DEFCON 2 and prepare launching the ICBMs towards the Soviets.

Snake asks how to stop it. Huey then tells Snake that Peace Walker is a fully autonomous system, and that unlike the other AI weapons Snake fought, Peace Walker's command authorities are inside the Mammal Pod. Strangelove then concludes that they have to stop the Mammal Pod, and the only other manner to stop it aside from destroying it cannot be done as she doesn't know the Abort Code due to Coldman being the only one who did. Miller then tells Snake to destroy the AI inside the Mammal Pod. Snake then tries to shoot the lock of Mammal Pod off, but it doesn't do anything. Huey then tells Snake that the Mammal Pod's barrier was designed to be as strong as a bomb shelter. Snake then asks what can get through it. Huey then states that an Atomic Bomb might penetrate it. Snake, extremely frustrated, asks if Huey's trying to joke with him. Huey states he's serious, as the Mammal Pod was designed to withstand a Nuclear War. Meanwhile, at the ECR HQ, the members state that they can't get through to the President, so it's up to them to decide whether to retaliate. One of the ECR Officers state that they can't be serious, as there is no way he is going to wipe out the human race. Another ECR Officer states that this is the President's call, to which another tells them that there's no time, and they need a decision now. Snake then tells Huey to get the Pentagon on the line as they need to tell them the nukes aren't real. Huey tries to do so. An ECR Officer mentions that he can forget the whole Chain of Command, as if they are all going to hell, they may as well take the Soviets with them as well. the ECR Announcer then tells them that they have 12 minutes to impact. Another ECR Officer hopes that God has mercy on their souls.

Miller then realizes that Coldman guessed wrong: They ARE going to go through with it. Huey points out that the Peace Walker platform did sustain some damage, so they could use some pressure. When Miller asks what Huey meant by that, Huey explains that they could dump it into the lake, as with the huge amount of water pressure and depth of the lake, even the tiniest crack can cause water to gush inside. As the AI is made up of sensitive electronics, sinking it will be a surefire way to stop it. Miller concludes that is a great idea, and asks how much Peace Walker weighs. Huey answers that it weighs 500 tons. Miller then decides they can't do that, as they can't lift up Peace Walker. Snake then demands to get the Pentagon on the phone. The ECR Announcer then mentions that the incoming MIRV warheads have separated and they have 11 minutes to impact. He then mentions that they have a call coming in. The Chairman then asks if it is the President. The ECR Announcer then tells him it's not. The Chairman then asks who it is. The ECR Announcer hesitates, and the Chairman shouts at him to spit it out, causing the ECR Announcer to tell him its someone claiming to be Big Boss. The Chairman then tells him to patch the call through. Snake then tells the Chairman that he'll get straight to the point: He has to cancel the retalitory strike immediately. The Chairman reacts in surprise. Snake tells him the radar blips he was seeing were all fakes, and no one has launched any nukes. The Chairman asks how he knows this. Snake tells him the launch data was all faked, and part of an experiment that leaked out, that NORAD was not supposed to receive it, and the radar is showing missiles that don't exist. The Chairman then tells Snake that if he's lying, then they have 10 minutes before until they die, so they have to retaliate before more Americans die. Snake then explains that the experiment was planned and executed by the Station Chief of Central America. The Chairman then tells him to put him on the line. Snake tells him he can't because he's dead, but he offers to give him his name. The Chairman then tells Snake that he needs more than the authentication code he provided to the switchboard, which is proof of his identity. Snake then explains that if he knows the name Big Boss, that would mean that he was at the ceremony where he was given the title by President Lyndon B. Johnson. The Chairman confirms this.

An ECR Officer then tells the Chairman that they don't have enough time for "bullshit." The Chairman shouts at the ECR Officer to hold it, and hear him out. He then tells Snake to continue. Snake tells him that during the ceremony, the late DCI tried to shake Snake's hand, but Snake refused. He also reminds him that what happened in that room was top secret so only a handful of people would know. The ECR Officer tells the Chairman that he's making it up. The Chairman tells him to wait, and he asks Snake why he didn't shake his hand. Snake then tells him that he didn't shake his hand because he already knew where his loyalty belonged. The Chairman then tells everyone that the Soviet Missiles are fakes. The ECR Officer then shouts in anger and surprise that the Chairman actually believes him, with the others telling him it's most likely some sort of Commie trick. The Chairman tells them that the caller was definitely Big Boss. The ECR Officers ask him how he is so sure. The Chairman explains that this was because he was there as the Army Chief of Staff back then and standing right next to the DCI that day when Snake refused to shake his hand. He then thanks Snake for saving them all and he will stand down the alert. Snake then thanks him.

Unfortunately, the ECR Officer points a gun at the Chairman, telling him that they will NOT stand down. Snake curses and Miller was about to call them something when Snake notices something: The Boss's AI is opening up to Snake releasing butterflies. Snake then rushes to the Mammal Pod. He then, under a four minute time limit, rips out all of the data uplinks. Unfortunately, even after ripping out the AI uplinks, they still are bypassing the Mammal Pod. Meanwhile, the Chairman tells the ECR Officers to come to their senses and that the entire world is at stake. Snake angrily asks why The Boss is still transmitting the data. The ECR Announcer then tells them that they have 6 minutes to impact. One of the ECR Officers declares that he has authority to call the Nuclear Strike, and he decides to say yes to it. The Chairman tells him that it will be the end of them all if he does. Another ECR Officer tells him that he doesn't care, as he won't just sit like a dog and die. Another ECR Officer tells him that he might as well take the Russians with him if they destroy his family and country. The first ECR Officer then tells the Chairman that deterrence is nothing more than a fools dream.

Strangelove then explains to Snake that sometimes when a part of the brain dies, another part takes over that brain's functions. The Peace Walker Unit then states that the Reptile Pod has taken over Mammal Pod's dying wish. He then shoots at the Peace Walker's head. It seems to malfunction, and then it stands upright. Snake then recognizes The Boss, and it recognizes that voice. It's trim turns yellow and The Boss seems to react with surprise. The ECR Officer then asks what's going on, and the Chairman recognizes the song. Snake then asks if that really is The Boss. Huey is wondering what's going on. Strangelove wonders if it is a ghost in the machine. Peace Walker then starts to enter the lake, causing Strangelove to guess that she is trying to drown herself to stop the transmission. NORAD HQ's radar then has all of the missiles disappearing, and being replaced by Peace Signs. Huey then deduces that, in a similar function to the human brain, Peace Walker must have used functional compensation to take over its tasks, as a result of the Mammal and Reptile Pods essentially acting as one. Strangelove wonders if her memories remained in her through the song. Huey then mentions that it's not thinking clearly, and instead using its heart. Miller then states that The Boss's Innocence has been proven, and inquires for Snake to listen to her song. Strangelove then realizes and understands why The Boss did what she did ten years ago: When she went into space for the mercury project, she saw a beauty other than war. She chose to put down her gun and instead sing. They would all hear her singing, and she sacrificed everything to have her will live on. She couldn't achieve it, but she still sang, hoping for the illusion called peace that could not be found. Snake, after mirroring his salute ten years ago, then removes his bandana into the wind.

Later after a brief conversation with Kaz in which Snake declares that he's again found himself and his purpose, he asks to be called "Big Boss" from now on.

Metal Gear Zeke

Afterwards, the MSF decided to build a Metal Gear named Zeke out of parts from the various AI weapons. Zadornov escaped six times, with Snake having to track him down at the FSLN Boathouse, the Mining Facility, the AI Facility, and Mt. Irazu, among others. After escaping for the seventh time, Snake proceeds into the firing range and hears Zadornov upstairs on the second floor. He then encounters Zadornov. Zadornov then tries to gun down Snake on the spot. The first shot missed, so Snake shot Zadornov out of self defense. Zadornov then mentions that his job here is done. Snake then asks what Zadornov meant by that. Zadornov then fires his Red hand, poised as a V-for-Victory sign, at Snake in a similar fashion to a rocket, but Snake ducked behind a corner causing it to bounce off harmlessly off the railing. Zadornov then succumbs to his gunshot wound. Snake then tells Miller that he found Zadornov and he was forced to kill him. Miller then mentioned their fugitive is dead.

Snake then tells Miller that he apparently had an accomplice alongside him. Miller then wonders if someone in MSF is behind it, and then notices something. Snake asks Miller what is going on, and Miller then tells Snake that Metal Gear Zeke's moving by itself, and he can see someone inside. He tells Snake to get to the Zeke deck of the Mother Base immediately. Snake arrives at the Zeke Deck and demands to know who is using the Zeke unit without authorization. A voice tells him from inside that he's too late. Snake is shocked to hear that Paz is inside the machine. Snake then tells her to get out of Zeke as she might get hurt. Paz then wonders who might get hurt. Miller notes that something's wrong with Paz as she's acting strangely. Paz then says that she's perfectly fine, and that they shall see the real her. Snake tells Miller to stop Zeke, but Miller just couldn't do it, as Zeke is out of his control. Snake wonders how it is moving. Paz then mentions that she made modifications to Zeke, as it was meant to be piloted. Snake is shocked to learn that Paz is apparently a mechanical enthusiast. Miller then realizes that Zadornov's escape was a diversion. Snake then asks her what she plans on doing with Zeke. She then reveals she is taking it back to their leaders: Cipher, as they were the ones who created Zeke in the first place. Snake then tells Paz to get out of there. "Paz" then admits that her real name was Pacifica Ocean, and that everything about her was faked by Cipher, and that her plan is her one and only purpose, and she's done pretending to be the transparent ambassador of peace and the silly teenager with a dream, and in fact she hates the name Paz. She then tells Snake that it all went as predicted and the true Peace Walker project will be fulfilled. Snake then wonders what she meant by the "real" Peace Walker project.

Pacifica then explains how two young men, Snake and Zero, who idolized a hero known as The Boss. They lost the point of origin, the cipher, and grieved. They were unable to come to terms with their sorrow, so they each decided to carry on the will of their hero. However, they couldn't agree what the will was, so they split up and became bitter enemies, and Snake was on the wrong path ever since. She tells Snake that there is no happy ending unless he follows the will of Cipher. She questions him as to what an army without borders call home, to which she then calls a country without borders: A world without borders. Pacifica then states that the Cold War is nearing an end, and that the age of electronic intelligence is about to begin. The NSA, OSS, NRO, DIA, among other agencies within the Intelligence community that bickered with itself will be united within a single world governed by electrons.

She also mentions that Cipher will gather information and guide the world and it's peoples minds while the populace remain blissfully unaware. As there is no one to oppose them, it will be the first time the world was ruled by a single will. She also says that until the new world order is in place, the only ones who protects this developing new world order will be Snake and his army. They will act as Cipher's deterrent, and that they will pull the wool over the old order's eyes with Snake's charisma and military prowess. Pacifica then beckons Snake to accept their offer if he is to keep the MSF. Snake then wonders if that's an offer. Pacifica then tells Snake that The Boss threw down her gun and with it her life's calling. Snake, on the other hand, was too afraid to let go. Snake mentioned he was made a weapon. Pacifica then tells him he's a lousy liar, as she thinks Zeke is a monstrosity based on his own fear. She also tells Snake that Cipher's aims are to control guns, not deter, control. Pacifica states that this is the ultimate approach to the allusion of Peace. Snake then tells her that she'll be disappointed.

Pacifica then declares that they are done, and that the offer is recinded, so she is going to make the ultimatum. Zeke is already set for nuclear launch mode, and its target is going to be the East Coast of the United States. Snake then shouts what that would accomplish. Pacifica then tells Snake his consolation prize: Cipher's going to show the world just how dangerous a gang of outlaws, an army without borders, can be. The Militaires Sans Frontieres will be seen as pariahs as well as wiped off the face of the Earth. Also, instead of heroes, they will be seen as an extremist cult prone to indiscriminate outbursts of Nuclear aggression. In essence Cipher will give rise to a new world order: a deterrence based world where people will be fearful of extremist cult influence. Pacifica then asks if Snake likes the picture she's painting, and that in the end peace is nothing more than a fantasy, a games a game, people can either win or lose, a fight is a fight, and tells Snake to stop her if she can, as the peace symbol is the same as the V-for-Victory. She then says say peace before putting an oxygen tube up for the rising water in the control room.

Snake then fights Zeke, and after damaging it enough, Pacifica tells Snake that Zeke is beyond her control now, resigned to her fate, and tells Snake that as long as the world is in need of the Militaires Sans Frontieres, it can never learn true peace, as the only peace he will find is fleeting- illusionary, where people will use him, disgrace him, and eventually throw him out like a cancer to society, and this is his path. Zeke then explodes and Pacifica is thrown by the force of the explosion into the ocean. Snake and Miller then look down remorsefully about what happened. Meanwhile, Strangelove is working on the AI from Zeke, and Huey asks how it is doing. Strangelove then tells Huey that the Altitude control AI had a backup, so Zeke should be able to walk, at least. Huey thinks that's good. Strangelove then mentions that beyond that, it is up to the creator. She then notices Huey coming over to her and tells him not to come any closer. Huey then asks her something he had been meaning to ask her before: Does she despise him? Strangelove then takes off her sunglasses and asks bewilderedly if he's asking her out. Huey then mentions he isn't. Strangelove then remarks that it's a shame, because she already broke up with someone before. Huey then reacts in surprise. Strangelove then releases a bit of his restraints in the wheelchair and tells him that she only likes those who stand on their own. She then mentions while getting a bit physical with him that if he likes her, he should try to walk with her, as who knows what miracles will happen. She then places her sunglasses over his eyes while replacing his old glasses remarking that love is blind, after all. She then encourages him to take his time, and she'll be waiting while walking away. Huey then motions his fingers in a manner similar to walking towards the switch just stopping at it.

Meanwhile Snake and Miller discuss the aftermath of the situation. Kaz then explains to Snake that the MSF will soon be an asset to the economy, telling him that the Cold War won't last much longer and that terrorism will emerge, and State Armies won't be necessary anymore, soldiers will be a commodity, and that the MSF was a revolution in itself. Snake explains that it's not going to be easy, as they have already interfered too much with the military balance of power, and they were never supposed to get involved in foreign affairs due to being an army without a flag. Miller realizes that Snake has a point, so he wonders what will happen. Snake explains they'll be hunted down, and Miller realizes that people weren't too happy with their actions. Snake confirms this, as they have upset the global military balance, and some people would rather that their Army without Borders never existed. Snake then mentions they can't turn back now, and will have to fight a lonely battle with neither good nor evil, neither winners nor losers. Miller mentions that he is with him all the way. Snake then tells Miller to assemble the men, as they are going to be hunted and the world's on their tail.

Some time later, Big Boss stands before his soldiers as they chant his title, and gives a motivational speech over a loudspeaker in which he discusses the MSF's future of being hunted and enduring hell, and after again saying they'll be in neither Heaven or Hell, he officially gives them the title "Outer Heaven"