Marines assigned to Company A, 1st Reconnaissance Battalion, 1st Marine Division, prepare to fast-rope as a fire team aboard Marine Corps Base Camp Pendleton, Calif., Aug. 17, 2015. The Marines practiced fast-roping as a team to gain proficiency in order to effectively insert from a helicopter. - Marines assigned to Company A, 1st Reconnaissance Battalion, 1st Marine Division, prepare to fast-rope as a fire team aboard Marine Corps Base Camp Pendleton, Calif., Aug. 17, 2015. The Marines practiced fast-roping as a team to gain proficiency in order to effectively insert from a helicopter.