Command would represent force of personality, literally to command attention, respect, negotiation, commerce, or compelling obedience. It is the stat representing how loud your ape is. Command is an emotional demand.
Guile on the other hand would represent more subtle arts. Seduction, coercion, intimidation. As well as picking a lock or placing a claymore for effect. Guile is an emotional appeal.
Wits represents thinking, logic, rhetoric, communication through body language, finding your way through a labyrinth. Wits represents both lateral and forward thinking.
Brawn is your overall strength, toughness, coordination. Where wits might tell you where the best route for a jump in EVA will be, brawn is how you do it.