Squatch

Squatch was a soldier of a Blue Team squadron. He, along with 6 other soldiers, was locked in a room with the doors only opening if the seven troopers in the room could reach an agreement. After a murder-mystery surrounding the mysterious death of Hutch is solved (every single person in the room shot him for different reasons, Squatch's reason being because he panicked when the lights went out), the Reds and Blues slaughter each other.

Trivia

 * He is has Achromatopsia (the utter inability to see color), coincidentally just like everyone else in the room.