The 374th Security Forces Squadron 2018 Security Forces Advanced Combat Skills Assessment team learn more about the interworking of the M249 light machine gun, May 31, 2018, at Yokota Air Base, Japan. The 374 SFS team practiced firing the various weapons including the M4 carbine assault rifle, M9 pistol and the M249 light machine gun in preparation for the 2018 ACSA competition at Andersen Air Force Base, Guam. (U.S. Air Force photo by Senior Airman Donald Hudson)