Marine Corps photograph by Sgt. Michael Thorn

Sgt. Giovanny Mayer, center, a flight planner with Headquarters and Headquarters Squadron and a Sylmar, Calif., native, leads a warm up with Marines before starting a Marine Corps Martial Arts Program course aboard Marine Corps Air Station Miramar, Calif., April 5. The MCMAP courses by Mayer are designed for a variety of experience levels for any Marines interested in joining.