Marines with 3rd Platoon, Rocket Battery F, 2nd Battalion, 14th Marine Regiment, Marine Forces Reserve, unload cots during Weapons and Tactics Instructor course 1-18 at Landing Zone Bull Attack near the Chocolate Mountain Aerial Gunnery Range, California, Oct. 6- 19, 2017. The Marines are participating in WTI 1-18 during their two-week annual training and using the High Mobility Artillery Rocket System to fire Guided Multiple Launch Rocket System rockets in a ‘sensor to shooter integration’ exercise with Marine Fighter Attack Squadron 121, 3rd Marine Aircraft Wing, flying the F-35B Lightning II Joint Strike Fighter. (U.S. Marine Corps photo by Lance Cpl. Melany Vasquez/ Released)