Marines conducted live-fire ranges where they rehearsed rocket battle drills and fire team attacks. - Lance Cpl. Jonathan Whitfield, a fire team leader with 3rd Battalion, 6th Marine Regiment, 2nd Marine Division engages a target with an M27 Infantry Automatic Rifle during a Tactical Small Unit Leaders Course at Camp Lejeune, N.C., Jan. 16, 2017. Marines conducted live-fire ranges where they rehearsed rocket battle drills and fire team attacks. The Marines used the M72AS 21mm Trainer System, M72 Lightweight Anti-Tank Weapon, AT-4 rocket launcher, M203 grenade launcher, M32 grenade launcher and M27 Infantry Automatic Rifle.