Sgt. Tirso O. Sotoortiz, left, and Cpl. Casey C. Kiser preform shallow water grappling techniques Nov. 21 at Kin Blue, Okinawa, during the culminating event for Marine Corps Martial Arts Instructor course class 1-15. The culminating event pushed the Marines and sailor to their limits mentally and physically while challenging them with MCMAP fundamentals. Marines and sailor in the course trained for three weeks in order to earn their instructor tab. After earning their tab, they now have the ability to practice and teach the disciplines and lessons they learned from the course. The course was run by Headquarters and Support Battalion, Marine Corps Installation Pacific-Marine Corps Base Camp Butler, Japan. Sotoortiz is an engineer equipment mechanic assigned to 3rd Maintenance Battalion, Combat Logistics Regiment 35, 3rd Marine Logistics Group. Kiser is a motor vehicle operator assigned to Combat Logistics Battalion 4, Combat logistics Regiment 3, 3rd Marine Logistic Group. (Marine Corps Photo by Cpl. Joey S. Holeman, Jr./ Released)