Well you could always make Guns, Explosives, and Melee your tag skills, and then place your skillpoints. I know we can't level up every skill to 100%, but I'm sure we can level up 3-4 skills to their max. As for Unarmed, if there's any points left, put them in there.
Sounds like a plan but I usually always tag repair, no matter what the build is. My F3 cowboy had small guns, unarmed, repair, lock pick, speechcraft (because he was a good guy) and either medecine or sneak, I really cant remember. Ill have to think this new build out more carefully since there seems to be different skills and what not.