Combat Call A Marine attending a combat engineer course ensures his back blast area is clear before firing a shoulder-launched multipurpose assault weapon at Camp Lejeune, N.C., Feb. 21, 2017. Marine Corps photo by Cpl. Manuel A. Serrano SHARE: Download: Full Size (2.2 MB) Credit: Cpl. Manuel Serrano VIRIN: 170221-M-SH393-405D.JPG Photo Gallery