U.S. Marine Corps Lance Cpl. Marc Mercado, assigned to the Advanced Infantry Marine Course (AIMC), carries an M240B machine gun during casualty evacuation drills aboard Kahuku Training Area, Hawaii, May 1, 2018.
AIMC is intermediate training designed to enhance and test the Marine's skills and leadership abilities as squad leaders in a rifle platoon. (U.S. Marine Corps photo by Sgt. Aaron S. Patterson). Original public domain image from Flickr