Marines from 1st Marine Special Operations Brigade file into a CH-46 Sea Knight before conducting parachute operations aboard Camp Pendleton, Calif., Dec. 12, 2013. Marines with 1st Air Delivery Platoon, Landing Support Company, Combat Logistics Regiment 17, 1st Marine Logistics Group, conducted day and night jumps with 3rd Air Naval Gunfire Liaison Company and 1st Marine Special Operations Brigade to maintain proficiency and transition to a new parachute system. (U.S. Marine Corps photo by Cpl. Timothy Childers)