Marines conduct a fast-rope exercise from a CH-53E Super Stallion helicopter in Yuma, Ariz., April 1, 2016. The Marines are assigned to 3nd Battalion, 6th Marine Regiment, 2nd Marine Division, 2nd Marine Expeditionary Force. The course 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. Marine Corps photo by Staff Sgt. Artur Shvartsberg