Thanks. Also (I'm remembering this stuff bit by bit, because this is years of debate and argument on the subject coming back to me), Martial Arts as a specialization (spec for short?) of Brawling doesn't work as a spec should, IMO. Specs should focus on a singular portion of a skill (Blaster Pistols, Rifles, etc, for Blasters, or Knives, Swords, Clubs, etc, for Melee Combat).
If a spec is made for Brawling, it would be Punch, Kick, Knee, Elbow, Headbutt...you would specialize in what part of your body you're attacking with, or, maybe, a certain attack you're using against the enemy you're fighting (knee smash, grapple, arm break, choke hold, etc).
Martial Arts is a more advanced and fine-tuned form of close combat, just as varied sciences are more advanced forms of the Scholar skill. As there are many branches of science (Biology, Medicine, Genetics, etc, etc, etc), Martial Arts has many different forms as well, which work differently, are applied differently, and get different results. With that said, I love the various moves and maneuvers Martial Arts allows, and even better, I love the fan-made expanded rules found online for the many styles of Martial Arts that players can choose from. But all of that, applied as Advanced Skills.
As for the original point on Chirrut and Martial Arts, I do think he should have Martial Arts, BUT, I also want to know more about the style he uses before making that a definite opinion. Freddy was right that he used his staff most of the time, and as far as representing what was seen in the movie Rogue One, these stats do the job well enough. Some Martial Arts styles are also more passive, less about the combat, and focus more on things like katas and such. I'd want to know what his martial arts style focuses on, and see if it involves combat.
Speaking of which, I'll look at that now...