U.S. Air Force Tech Sgt. Brian Marshall, 823d Base Defense Squadron NCO in charge of training, provides cover for his team during a care under fire scenario, April 13, 2016, at Avon Park Air Force Range, Fla. Airmen had to rescue a simulated causality, provide self-aid buddy care, and get the causality to safety. (U.S. Air Force photo by Airman 1st Class Janiqua P. Robinson/Released)