CC group 5 is resource-wasteful especially at low STR. better option is to just get Unarmed + shock gloves. You just won't do enough damage with Blades or Clubs. A stun baton might work but Unarmed at least covers you in the niche situation of being captured or arrested.
I didn't really notice his STR was so low.. so yah.. not CC Group 5. If it were me I would take Firearms at 5 and then take Unarmed at 6 with Shock Gloves or something. Can always pick up the specialization for weapon with Karma.
First Aid 2 isn't worth it. You can only heal 2 boxes with the skill at that level. You're better off not buying it unless you take it to 5-6.
I just didn't want to totally eliminate his First Aid since he had 6 points in it to begin with. He seems to like it.

My thinking is he would carry a smaill Medkit (3) for the bonus.