Corporal Joshua Westlake, a machine gunner for 3rd Battalion, 3rd Marine Regiment, based out of Marine Corps Base Hawaii, Kaneohe Bay, and a native of Elkhart, Ind., teaches motor transport specialists with 3/3 how to assemble and fire an M2 .50-caliber machine gun on the training ranges surrounding Yuma, Ariz., Thursday, Oct. 2, 2014. The motor transport Marines would employ the M2 during the simulated ambush portion of their advanced convoy exercise later that day.