set_user_hitzones ( index = 0, target = 0, body = 255 )
...
Sets hit zones for player.
Parts of body are as bits:
1 - generic
2 - head
4 - chest
8 - stomach
16 - left arm
32 - right arm
64 - left leg
128 - right leg
...
Set index to 0 and target to a player's index to define what bodyparts on player other players can hit when they are firing.