U.S. Marines participating in a weapons and tactics instructor (WTI) course exit a CH-53E Super Stallion helicopter for a battle drill at the Chocolate Mountain Aerial Gunnery Range in California Oct. 5, 2013. The WTI 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)