Engineer Squadron crew chief and team captain, adjusts his jacket during the final team practice, Aug. 13, 2012, at Langley Air Force Base, Va. During the upcoming Firefighter Combat Challenge, teams will perform a series of five events including climbing a five-story tower, simulated chopping, dragging hoses and rescuing a life-sized, 175-pound mannequin as they race against the clock. (U.S. Air Force photo by Senior Airman John Strong/Released)