Keegan was a US Marine Corps 1st Class who was sent to clear a hospital and evacuate civilians against approximately 500 enemy soldiers. After the mission he became one of the “Ghosts” squad. Modest, uncommunicative, sometimes rude and distant, lost in his own thoughts. He is a sniper and an excellent fighter. Always wears a mask that only reveals the eyes and part of the forehead, with a print of the bottom of a skeletal head.