MCMAP is bullshit for 'martial arts'. Sure you learn some pretty nice self-defense techniques and moves, but that's about all it boils down to. How to defend yourself when the going gets rough. [MCMAP - Marine Corps 'Martial Arts' Program] Unless you get into those ridiculous belts and tabs, but they supplement what they know from other secondary Martial Arts. Swimming is a great whole body exercise. Feel like I could eat a whole cow after swimming for a few hours.