U.S. Marines from 3rd Battalion, 3rd Marine Regiment

U.S. Marines from 3rd Battalion, 3rd Marine Regiment (3/3), 3rd Marine Division, 3rd Marine Expeditionary Force (MEF), shield from the dust as an MV-22B Osprey takes of during Offensive Air Support 5 in support of Weapons and Tactics Instructor (WTI) 1-15 course on Mt. Barrow, Chocolate Mountain Aerial Gunnery Range, Calif., Sept. 30, 2014. WTI is a seven week training event hosted by Marine Aviation and Weapon Tactics Squadron (MAWTS-1) cadre. MAWTS-1 provides standardized advanced 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 Cpl. Allison J. Herman, COMCAM/Released)