Marines from the new equipment training team perform a maintenance check on the remote weapons station on the Amphibious Combat Vehicle. NETT Marines train to become subject matter experts on new equipment, such as the ACV, in order to teach other Marines how to maintain and operate newly-fielded equipment. In addition to instructing Marines, the NET team reviews and provides input to training manuals and standard operating procedures, including the maintenance course. (U.S. Marine Corps photo by Ashley Calingo)