Corporal Matthew Christman, a field artillery cannoneer and a mortar section chief, serving with 2nd Battalion 11th Marine Regiment supervises as Lance Cpl. Kevin Rodriguez fires the M-327 Towed Rifle Mortar Weapon while conducting a firing mission during a live-fire training exercise, here April 3, 2013. Rodriguez a 21-year-old-native of Long Beach, Calif., said he has the most fun job on the gun team because he is in charge of actually firing the weapon system.