U.S. Air Force Tech Sgt. Greg Styer, 633rd Communications Squadron cyber transport technician, fires the M-4 Carbine during the Combat Arms course at Langley Air Force Base Va., Aug. 28, 2012. Students fire at targets, during the live-fire drills, using various body positions such as prone, kneeling and standing. (U.S. Air Force photo by Senior Airman Stephanie Rubi / Released)