Staff Sgt. Derek Fox, 375th Security Forces Squadron combat arms training and maintenance instructor, shows a proper prone shooting position while teaching a class March 3, 2011, at Scott Air Force Base, Ill. Scott AFB's combat arms training and maintenance instructors with the 375th Security Forces Squadron train more the 1,500 Airmen a quarter in weapons training. (U.S Air Force Photo/Airman 1st Class Divine Cox)