Sgt. Nathanael Izu (left), a section chief, Lance Cpl. Alex Chavez (middle), a gunner and driver, and Lance Cpl. Devin Baxter (right), a gunner, all with 3rd Platoon, Rocket Battery F, 2nd Battalion, 14th Marine Regiment, Marine Forces Reserve, perform an unload and reload drill of inert ordnance during Weapons and Tactics Instructor course 1-18 at Landing Zone Bull Attack, near the Chocolate Mountain Aerial Gunnery Range, California, Oct. 11, 2017. The Marines participated in WTI 1-18 to train with the M142 High Mobility Artillery Rocket System and to gain experience firing Guided Multiple Launch Rocket System munitions. (U.S. Marine Corps photo by Lance Cpl. Melany Vasquez/ Released)