I want to block the bullet if it's going to hit the head. The bullet should act like it's mp_friendlyfire 0 when it's aimed to the head, but it should take the damage if it's aimed in the rest of the body.
I need something which can give me the chance to use victim and attacker, because I want to make some restrictions (victim team == attacker team and others). set_user_hitzones is not a good idea.