I liked the 1.11 update where the zombies would get damaged from the barbed wire and fire. I built a gate with barbed wire on the experimental server and tried to see if the barbed wire would damage zombies. I fired some shots in the air to aggro some nearby zombies and they walked right up to my gate touching my barbed wire with no damage. I know this was intentionally changed in the update, but its just nice to be able to have a base defense that will defend against the AI as well as human players. This was the same result with wolves too. A pack of wolves appear near my base and then I aggro them to my barbed wire gate and they walk right up to it with no damage. This is on Dayz experimental server LA.