Senior Airman Marquez Roquemore, 4th Security Forces Squadron patrolman, fires a M4 carbine during a shoot competition, July 30, 2018, at Seymour Johnson Air Force Base, North Carolina. Airmen from the 4th SFS competed in a M4 and M9 weapons challenge as part of the 4th SFS Defender Challenge trial. (U.S. Air Force photo by Airman 1st Class Shawna L. Keyes)