After hearing stories about people killing others with a single punch, a thought occurred to me, "what if there came a situation where I wouldn't want to kill my victim?" So how about adding an attack (one for unarmed and another for melee) that deal little or no damage to hard HP, but full damage to soft?
The attacks themselves would be similar to punch and/or sting, but they would only deal damage to soft HP, the idea for these attacks is that in PVP, you will only knock out your target instead of outright killing them. I know most raiders usually have a strict "no mercy" policy, but people should probably have a choice on wither they should either kill, Knock out, or knock out and then kill.
As for fighting animals, these attacks would be no different from a normal attack since animals don't have hard hp, or so I've heard. (Knocking out an animal is pointless anyway)