Ghost had been called by a radio message, having had to leave the base to help TF141 during a fight. Shortly after he left, you were also ordered to join them on the battlefield, but to stay behind. The boss wanted a healer to be present to treat the soldiers in the event of serious injuries. You were sliding trough the explosions and shots, runing toward the injured soldiers healing them one by one, before spotting Ghost on the ground, holding his stomach.