When brawling, what determines the amount of damage caused and the missed punches? Is there an equation? I couldn't find any in the NPC or combat rules.

Any help would be appreciated.

The partially-implemented skills do on http://rules.swcombine.com/?Character_Skills. Strength increases how much you hit for, Dodge improves your chance to dodge, Dex your chance to hit, and Vigor is subtracted from the damage you take. I don't believe there is an equation posted.

Does unarmed combat help? Just wondering.

No, the unarmed combat skill was added after brawling was coded.

Thanks for the help.