U.S. Marines participating in a weapons and tactics instructor course gather for a CH-53E Super Stallion helicopter battle drill brief at a landing zone at the Chocolate Mountain Aerial Gunnery Range in California Oct. 5, 2013. The course, a seven-week training event hosted by Marine Aviation Weapons and Tactics Squadron (MAWTS) 1, provided standardized advanced tactical training and unit instructor qualifications in support of Marine aviation training and readiness. (U.S. Marine Corps photo by Lance Cpl. Xzavior T. McNeal/Released)