U.S. Air Force Senior Airman Auston Duncan, 703rd Munitions Support Squadron custody forces, shoots an M4 carbine while participating in the Excellence in Competition event at Spangdahlem Air Base, Germany, Oct. 4, 2018. The competition had four different shooting positions: standing unsupported, kneeling unsupported, sitting unsupported, and prone unsupported. (U.S. Air Force photo by Staff Sgt. Jonathan Snyder)