Captain MacMillan

"I think you blew his arm off. Shock and blood loss should do the rest." ―MacMillan to Leftenant Price, upon the latter shooting Imran Zakhaev[src]

MacMillan[1] was a Scottish Special Air Service officer featured in Call of Duty 4: Modern Warfare. Fifteen years prior to the modern events of Call of Duty 4, he was a captain of the SAS and the commander of a two-man SAS sniper team, including then-Leftenant Price, that was assigned to assassinate Imran Zakhaev in a covert operation in Chernobyl, Ukraine. After Price successfully injured Zakhaev, MacMillan and the Leftenant were compromised and forced to flee. MacMillan was injured by a crashed helicopter, and Price had to carry him the rest of the way to safety. The player, who controls Price during "One Shot, One Kill", cannot complete the level without carrying MacMillan to safety.