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Mosquito was a former Militaires Sans Frontières member-turned commander of the PF Mosquito Stinger Force after the events of the Ground Zeroes Incident that destroyed the PMC he formerly worked under.


Mosquito was part of the MSF Mother Base staff. However, he was kept out of the loop about Paz Ortega Andrade's survival as well as Chico's capture. When the XOF attacked Mother Base, he ultimately survived, although the events greatly haunted him, causing him to break off from his comrades under the paranoia that the group that attacked Mother Base would send a clean-up squad. Ultimately, the years in isolation were unforgiving to him, which caused his sense of loyalty to falter

He eventually learned of a rumor via an anonymous source, that his former commander in MSF, Big Boss, had sold out his comrades so he could go into hiding, and believed the source to be accurate due to Big Boss being absent from Mother Base that day (in actuality, his being absent was because at the time Mother Base had been attacked, Big Boss had to go over to Cuba to save Chico and Paz), so he decided to form his own private force, Mosquito Stinger Force, modeling it after the MSF exactly as it was before the attack and tried to avenge his comrades by attacking the succeeding group Diamond Dogs due to its presumed ties with Big Boss. He deliberately modeled his PF after MSF in every way as he believed it to be the perfect revenge.

The flag of the PF Mosquito Stinger Force.

In 1984, around the time the Diamond Dogs went to Africa to investigate XOF's activities, he and his PF made their move, holding their new Mother Base's R&D Platform and several Diamond Dogs members hostage, and threatening to kill them if any Diamond Dogs members attempted to set foot onto their platform. Ultimately, his takeover was quelled by Venom Snake, the leader of Diamond Dogs, who had to infiltrate alone without even indirect aid from Ocelot and Kazuhira Miller due to Mosquito's threats, with his PF being captured shortly after his defeat. He was ultimately a victim of disinformation. He can be extracted instead of killed.

Later, Diamond Dogs found the stronghold of the PF Mosquito commanded. There, remnants of the organization were attempting to rebuild it. Venom Snake infiltrated the stronghold and put an end to their plans.[1]

Behind the scenes

Mosquito is a key character in the Main Mission "Retake the Platform" in Metal Gear Solid V: The Phantom Pain. The player can either kill him or capture him to end the mission. If he is captured, Miller will debrief Venom Snake on his identity and motives for attacking Mother Base, and also let Snake decide how to handle him. Mosquito is eventually released from the brig and joins Diamond Dogs.

There are 10 side ops that feature wandering soldiers that had formerly been members of MSF similar to Mosquito, although they were depicted as being more significantly unhinged.

It is stated in the Piggyback official strategy guide for The Phantom Pain that Mosquito is actually the same soldier who helped Miller to escape Mother Base just before it sank into the ocean in Ground Zeroes. The names on their backpacks were also stylized in a similar manner (namely, leaving all letters in the name but the "i" capitalized, as well as having two exclamation points). However, he is seen being shot after Miller boards the helicopter and the sole MSF soldier that survives has a triangle emblem on the back of the uniform. In addition, Miller doesn't recognize Mosquito when talking about him during the mission's briefing.[2] Finally, the name on the backpack is slightly different: The one who got shot in Ground Zeroes has the name "MOSQUiTE!!" on it, while in The Phantom Pain, it has the name "MOSQUiTO!!" instead.[3]

If the player ignores Miller's emergency call to retake the platform, after a while, Miller will call back saying they've dealt with the attackers, but their leader, Mosquito, was able to escape.[4] However, even after this call, the "Retake the Platform" mission doesn't disappear from the mission list and it's impossible to progress without completing it. It's unclear if it's a bug but the mission itself doesn't seem to change in any way.

If Venom Snake interrogates Mosquito, he'll ask Snake if he's Big Boss, wonder if he now realizes what Hell must be like as well, and if he recognizes him.[5]

While inflitrating Mosquito's stronghold in the FOB Event, the player can see Diamond Dogs logos all over the base and on the left shoulder of the base's Security Staff. However, all player-made FOBs, while belonging in-universe to separate PFs, feature Diamond Dogs logos, so this is a non-canon detail. Despite being the former commander for Mosquito Stinger Force, however, infiltrating the FOB and getting caught while using him as a playable character will still result in the player getting an alert.

Mosquito is briefly alluded to in the beginning of Metal Gear Survive. When Goodluck is reviewing a checkboard containing the various MSF members, a soldier with the codename "Vengeful Mosquito" is shown with an "MIA" next to their name.



  1. ^ FOB Event discription: A former comrade, Mosquito, once plotted to take over Mother Base in his mad pursuit to exact revenge on Big Boss. The stronghold of the PF he commanded has been located. There, remnants of Mosquito's PF are attempting to rebuild the organization. Make sure this doesn't happen. Infiltrate the enemy platform, and make it to the core.
  2. ^ Metal Gear Solid V: The Phantom Pain, Kojima Productions (2015).
    Benedict "Kazuhira" Miller: That's the target - the enemy commander. He calls himself "Mosquito." The PF he leads has captured a sizable market share by imitating the way we work. The more the PF industry expands, the thinner the available manpower is stretched. Finding and training elite personnel takes time. But Diamond Dogs is not about to submit to some two-bit impostors. Eliminate this "Mosquito," suppress his attack force, and show them what we're made of. And by the way Boss, do you recognize this guy? He seems to have something personal against us.
  3. ^
  4. ^ Metal Gear Solid V: The Phantom Pain, Kojima Productions (2015).
    Kazuhira Miller (Codec): All but one of the enemies were killed in the fighting...The commander used that diversion to get away.
  5. ^ Metal Gear Solid V: The Phantom Pain, Kojima Productions (2015).
    Mosquito: You're Big Boss...? So you know what Hell's like too. Boss... You still don't recognize me?!