U.S. Marines with C Battery, 1st Battalion, 11th Marine Regiment, 1st Marine Division fire a M777 howitzer during an assault support tactics exercise at Fire Base Burt, Chocolate Mountain Aerial Gunnery Range, Calif., Oct. 12, 2015. The exercise is part of Weapons and Tactics Instructor (WTI) 1-16, a seven-week training event hosted by Marine Aviation Weapons and Tactics Squadron One (MAWTS-1) cadre. MAWTS-1 provides standardized tactical training and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and employing aviation weapons and tactics. (U.S. Marine Corps photograph by SSgt. Artur Shvartsberg, MAWTS-1 COMCAM/Released)