A Marine with Headquarters and Service Company, 2nd Maintenance Battalion, 2nd Marine Logistics Group fires a .50-caliber M2 machine gun down range under the guidance of a Marine with 2nd Battalion, 9th Marine Regiment, 2nd Marine Division during a field exercise aboard Camp Lejeune, N.C., May 9, 2013. Three machine gunners with 2nd Battalion, 9th Marines shared their expertise to aid the Marines from HqSvc. Co.