Sgt. Jansen Davis, a section chief with 3rd Platoon, Rocket Battery F, 2nd Battalion, 14th Marine Regiment, 4th Marine Division, Marine Forces Reserve, detaches a set of inert ordnance from the High-Mobility Artillery Rocket System during an unloading and loading exercise, during Weapons and Tactics Instructor course 1-18 at Landing Zone Bull Attack, near the Chocolate Mountain Aerial Gunnery Range, California, Oct. 10, 2017. During WTI 1-18, Reserve Marines with 2/14 will deliver HIMARS fires for target coordinates provided by Marine Corps pilots with Marine Fighter Attack Squadron 121, 3rd Marine Aircraft Wing, flying the F-35B Lightning II Joint Strike Fighter.