Crosby (Black Ops)

Sgt. Crosby is a character from Call of Duty: Black Ops, who appears in the mission "Crash Site". During the mission, he gives the player, Mason, a radio to call in helicopter reinforcements. He then asks if Mason is from the Studies and Observations Group, and Mason confirms he is. The Crosby is quite amazed at this, because he is only a Marine, and Mason outranks him. The Crosby is not seen anymore after calling in the reinforcements, which further adds to the theory that he was killed in the heat of battle as he was pinned down by enemy gunfire.