Solid Snake (Operation 747)

Lt. Solid Snake was a renowned member of the military group FOXHOUND. He was instrumental in taking down both Outer Heaven and also Fortress Fanatic three years afterwards.

Early life
Solid Snake was dispatched to Outer Heaven to investigate and eventually take out its ultimate weapon, the Metal Gear VRC-4. He eventually managed to do so by destroying the supercomputer responsible for controlling the weapon. He eventually discovered that his commanding officer, Big Boss, had been responsible for Outer Heaven and the VRC-4, and had been intending for Snake to bring out false information to the West. Solid Snake managed to defeat his former commanding officer, and left him for dead. Because of his actions, he ended up promoted to Lieutenant.

Operation 747
Three years later, Lt. Solid Snake was briefed that, thanks to FOXHOUND's intelligence man's intel from an enemy base, the enemy was developing new weapons. As they are unsure whether the new weapons were mass-productions of the VRC-4 that Snake had destroyed during Operation Intrude N313, Snake is dispatched to the enemy territory, leading a three-man group composed of FOXHOUND explosives expert Nick Myer and former Navy intelligence officer John Turner. In addition, they also had the aid of a helicopter pilot, as he knew the route to the base.

Upon arrival, Snake, Nick, and John split up. After evading flares, searchlights, and Gyrocopter patrols, Snake and John rendezvous outside the main entrance, and carry out their plan of having John act as a decoy for the enemy guards and let himself get captured in order to allow Snake inside, as it was too heavily guarded to directly penetrate, and the back door was locked. Afterwards, Snake proceeded to carry over his investigation, also learning that John was relocated from one of the POWs. He eventually confirms after interrogating an enemy officer that the weapons were ready and being prepared to be shipped on an transport ship. He eventually managed to reach the exit after dealing with a five-man mercenary group near the exit and bypassed the barrier to the port area. As he arrived at the ship, Nick called in informing Snake that John is being held onboard the ship.

Snake then infiltrated the enemy tanker transporting them, with it setting sail just as Snake boarded. He eventually rescued a POW and learned that John Turner was relocated again, although he nonetheless learned that there was something important in the holds, which Snake deduced were the Metal Gear shipments. He eventually found an enemy officer who, after interrogating him, revealed that the VRC-4 shipments have no weaknesses to exploit, and suggests blowing up the ammunitions cache in the holds area to sink the ship. The helicopter pilot then called in and informed him that he's enroute to Snake's location. Snake then located a Grenadier unit and took them out to get the card key needed to access the holds. After locating the ammunitions room, he then blew up its ammunition room in order to sink it. He then used a tracer to locate the helicopter, eventually reaching the heliport before the ship sunk and boarded it after the helicopter blew up a part of a wall to aid in Snake's escape. Afterwards, he learned from his support group's helicopter pilot that contact had been lost with the FOXHOUND operatives, and that the nation also built an entirely new Metal Gear model: Metal Gear 2, and suggested that he contact their inside agent, Jennifer, for more information.

With this new development, he is then transported to the main enemy encampment. After rescuing a POW, he is informed by Nick via the POW to not trust John, and he is later called by John, informing him that he is on the train, and had activated his tracer. While traversing the train, Snake narrowly evaded various traps that John misinformed him about. After finding John and rescuing him, he learns that he wasn't actually John, but an imposter. Snake then managed to kill the imposter just as the train was headed to a stop, also retrieving the Powered Armor from him. Nick then called Snake and, after apologizing for being tardied about the call, informed him that the operation is a "go." While traversing through the remaining parts of the premises, Snake managed to retrieve some landmines, and got a call from Jennifer regarding information she picked up at the main base. At the immediate premises of the base, Snake was pinned down by an enemy tank, and used land mines to take it down. After infiltrating, he managed to interrogate an enemy officer and learned that Metal Gear 2 was seven times more powerful than the VRC-4, and also retrieved an antenna to alleviate a jamming issue with his Codec.

Upon arriving at the main building of the base, Snake is informed by Jennifer that Nick is coming in ahead of Snake and that he should follow his lead. He then interrogated several officers, where they revealed that the enemy's commander has the key to the secret weapon, and that the enemy's commander was allegedly invulnerable. He also learned from Jennifer that the commander plans on using Metal Gear 2 to launch nukes across the world, and also learns that the commander is on the top floor of the base. He also managed to locate a bugging kit, and also overheard in a room that the commander's weak spot was the soles of his feet. However, upon reaching the inner sanctum of the base, he gets a call from Nick, apologizing for his recklessness before being cut. Snake then manages to find a mortally wounded Nick, who informs him that Jennifer's cover was blown and that the leader of the enemy nation was in fact former FOXHOUND commander Big Boss, the mastermind behind Outer Heaven who was believed to have died in the aftermath of the mission. He also learned that Big Boss was equipped with a life support system and that in order to defeat him, he had to lure him out of the command room before Nick succumbed to his injuries. Snake later managed to find a smoke bomb. Eventually, Snake managed to enter Big Boss's command room, where Big Boss explained that after Metal Gear 1 and Outer Heaven was destroyed, he suffered extensive injuries that resulted in him becoming a cyborg, and he wanted revenge. Snake fought his former commanding officer, but after seemingly defeating him, Big Boss transformed into a giant robotic version of himself. Placing mines at Big Boss's feet after luring him out based on comments made by the guards and Nick's final words, Snake killed Big Boss once and for all. However, an announcement was made revealing that Metal Gear 2 was activated. Snake then escaped the command room and saved Jennifer, with her telling Snake to use the door in the area behind the main building to reach Metal Gear 2. Snake then, upon arriving, marked the door with the smoke bomb he found earlier, and had the chopper use its weapons to destroy the reinforced door. Upon entering, another announcement was made, declaring Metal Gear 2's first targets are New York, Tokyo, and Moscow. Snake eventually managed to reach Metal Gear 2's holding area and used the R/C Missiles to take it out of commission. As a result of Snake's actions, the United Nations declared World Peace Day.

Behind the scenes
Solid Snake is the playable character of the unofficial sequel Snake's Revenge. Unlike in most other incarnations of the character, including his canon counterpart, Snake remained a member of FOXHOUND, was promoted to Lieutenant sometime after the events of Operation Intrude N313. Snake's in-game appearance resembles that of Austrian bodybuilder and actor Arnold Schwarzenegger.

According to the back of the game's box, Solid Snake also spent his time pursuing Colonel Vermon CaTaffy (the supposed villain of Metal Gear) out of vengeance because of the latter killing two of his comrades shortly after he succeeded in his mission.