U.S. Marines with Combat Logistics Regiment 27, 2nd Marine Logistics Group prepare to load a 2,000-pound water carrier to an MV-22 Osprey tiltrotor aircraft April 5, 2014, during an external lift exercise as part of Weapons and Tactics Instructor Course 2-14 at Landing Zone Bull at the Chocolate Mountain Aerial Gunnery Range in California. The Weapons and Tactics Instructor Course, hosted by Marine Aviation Weapons and Tactics Squadron (MAWTS) 1, is designed to teach the six functions of Marine Corps aviation while providing the closest experience to real combat strategy, tactics and execution. (U.S. Marine Corps photo by Lance Cpl. Xzavior T. McNeal/Released)