Senior Airman Sean Thornton, 790th Missile Security Forces Squadron convoy response force leader, fires his M4 Carbine during a training session at the South Range of Camp Guernsey, Wyo., Oct. 16, 2012. Thornton joined other Airmen from F.E. Warren Air Force Base, Wyo. for the 10-day Road Warrior exercise at Camp Guernsey. (U.S. Air Force photo by Senior Airman Jarad A. Denton/Released)