U.S. Marines with the 15th Marine Expeditionary Unit’s Maritime Raid Force security element fast rope out of a CH-53E Super Stallion aboard Marine Corps Base Hawaii, May 12, 2015. Fast roping gives the MRF the ability to rapidly insert combat forces onto an objective. (U.S. Marine Corps photo by Cpl. Anna Albrecht/Released) - U.S. Marines with the 15th Marine Expeditionary Unit’s Maritime Raid Force security element fast rope out of a CH-53E Super Stallion aboard Marine Corps Base Hawaii, May 12, 2015. Fast roping gives the MRF the ability to rapidly insert combat forces onto an objective. (U.S. Marine Corps photo by Cpl. Anna Albrecht/Released)