U.S. Air Force Staff Sgt. Jason Whisenhunt inspects a target and gives advice to Airman 1st Class Anthony Logan after firing an M249 machine gun at Joint Base Charleston, S.C., March 26, 2010. Airman Logan shot 600 rounds of ammunition during his weapons familiarization training. Sergeant Whisenhunt is a combat arms instructor, and Airman Logan is a patrolman. Both are with the 628th Security Forces Squadron. (U.S. Air Force photo by James M. Bowman/released)

U.S. Air Force Airman 1st Class Christopher Duplisea fires an M249 machine gun while Staff Sgt. Jason Whisenhunt monitors at Joint Base Charleston, S.C., March 26, 2010. Airman Duplisea shot 600 rounds of ammunition in preparation for deployment along with fellow security forces members receiving weapons familiarization training. Sergeant Whisenhunt is a combat arms instructor, and Airman Duplisea is a patrolman. Both are with the 628th Security Forces Squadron. (U.S. Air Force photo by James M. Bowman/released)

U.S. Air Force Staff Sgt. Shaun Ferguson gives instructions on firing range procedures to 628th Security Forces Squadron members at Joint Base Charleston, S.C., March 26, 2010. In preparation for deployment, combat arms instructors conducted weapons familiarization training with the security forces members. Sergeant Ferguson is a combat arms instructor with the 628 SFS. (U.S. Air Force photo by James M. Bowman/released)