U.S. Marines with 5th Battalion, 11th Marine Regiment, 1st Marine Division, practice launching rockets from a high mobility artillery rockets system in a specified training area as part of Assault Support Tactics 2 during the Weapons and Tactics Instructor Course 1-19 at Landing Zone Star Assault, Chocolate Mountain Aerial Gunnery Range, Calif., Oct. 3, 2018. WTI is a seven-week training event hosted by Marine Aviation Weapons and Tactics Squadron 1, which emphasizes operational integration of the six functions of Marine Corps aviation in support of a Marine air-ground task force. The course also provides standardized advance 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 photo by Sgt. Jeremy Laboy)