Staff Sgt. Stephen Horton, 36th Security Forces Squadron NCO in charge of resource protection and physical security, fires a M4 carbine while using a mounted flashlight to illuminate his target July 7, 2016, at Andersen Air Force Base, Guam. Training conducted at night consists of using flashlights, night vision sights, lasers and infrared targeting systems. (U.S. Air Force photo by Airman 1st Class Jacob Skovo)