Marines with 1st Battalion, 8th Marine Regiment pause and check for a weapons malfunction during a company live-fire exercise aboard Camp Lejeune, N.C., Sept. 30, 2015. The exercise is in preparation for the integrated training exercise taking place at Air-Ground Combat Center Twentynine Palms, Calif., next month. (U.S. Marine Corps photo by Lance Cpl. Immanuel Johnson/Released) - Marines with 1st Battalion, 8th Marine Regiment pause and check for a weapons malfunction during a company live-fire exercise aboard Camp Lejeune, N.C., Sept. 30, 2015. The exercise is in preparation for the integrated training exercise taking place at Air-Ground Combat Center Twentynine Palms, Calif., next month. (U.S. Marine Corps photo by Lance Cpl. Immanuel Johnson/Released)