English: Explosive ordnance Airmen use a low crawl to transport a simulated patient out of enemy fire during a Tactical Combat Casualty Care training exercise at Scott Air Force Base, Ill., Dec. 4, 2014. The teams all made up Airmen from the 375th Air Mobility Wing and 932nd Airlift Wing Explosive Ordnance flights had four roles, a medic, medical assistant, a team leader and one security member. There are three parts to TCCC, Care under Fire, Tactical Field Care and Tactical Evacuation Care. Students are taught how to identify three major causes of potentially survivable battlefield injuries — hemorrhage, pneumothorax and blocked airway — and treat them aggressively.