A Marine with 3rd Battalion, 6th Marine Regiment throws a simulated grenade during lane training at Marine Corps Base Camp Lejeune, N.C., Oct. 20, 2015. Marines with the company were required to assault a bunker and when within range, throw a grenade to eliminate any possible threats. The training consisted of four stations, each of which would provide instructions and hands-on training in radio communications, grenade employment, patrolling and emplacing M18 Claymores. - A Marine with 3rd Battalion, 6th Marine Regiment throws a simulated grenade during lane training at Marine Corps Base Camp Lejeune, N.C., Oct. 20, 2015. Marines with the company were required to assault a bunker and when within range, throw a grenade to eliminate any possible threats. The training consisted of four stations, each of which would provide instructions and hands-on training in radio communications, grenade employment, patrolling and emplacing M18 Claymores.