Marines with Headquarters and Service Company, 2nd Maintenance Battalion, 2nd Marine Logistics Group load .50-caliber M2 machine gun rounds into ammunition cans during a field exercise aboard Camp Lejeune, N.C., May 9, 2013. Approximately 20 Marines with the company trained with M2 machine guns under the instruction of machine gunners with 2nd Battalion, 9th Marine Regiment, 2nd Marine Division.