I think the same things that translate from martial arts to paintball are the same things that would translate from almost any sport. Physical fitness, agility, stamina and mental discipline are about the only things i see that can translate. Horse stance is good for conditioning your legs but not in a shooting situation real or paintball related, in my opinion. Ninjitsu has some rolls and dives that could possibly be used to evade paintballs and for getting to cover quickly but with a gun and gear on your person it wont be the same as in the dojo. I probably crush my ten round tubes and f up my marker in the process. I would like to see some of those fake(plastic with a ring around the edge= harmless) throwing stars added to games though...would be cool as hell to whip a few shuriken at an unexpecting player instead of risking being discovered in a barrel tag attempt.