Gun Skills A Marine fires a tracer round from an M240L machine gun during a night live-fire range at Camp Shorabak, Afghanistan, June 25, 2017. The Marine is assigned to Task Force Southwest, which works to train, advise and assist the Afghan army and national police. Marine Corps photo by Sgt. Lucas Hopkins SHARE: Download: Full Size (1.91 MB) Credit: Sgt. Lucas Hopkins VIRIN: 170625-M-TR086-197C.JPG Photo Gallery