McKee was a Marine that was sent along with two squads. He was a part of Bravo squad which also contained Wyatt, Faraday and Owens, on a top secret mission called Operation Aurora. They were supposed to extract a Japanese scientist that had vital information about a Japanese made WMD. After successfully completing his mission and escaping the island via submarine, the Black Weapon is set off. This results in an enormous shockwave, which caused a tidal wave that drowned everyone on board the vessel, including McKee.