There is a wall hack on TT in the fenced in area I think it's to the South West corner of the town. Players can get inside the fenced in area and get right up next to the fence and put their tank cannon through the fence.
The result is they can kill you but your rounds bounce off the fence. Only way to kill them on the ground is to get inside the fenced area or get right up next to the fence so you can get your barrel through the fence.
I filmed 3 guys doing it as I bombed them, after a few tries trying to kill them in a tank.
Link to film
http://www.strafing.com/temp/tt-wall-hack.ahfIf you watch via the players GoHigh, sloehand and PATRIOTS you can see what they are doing. Not trying to bash these players specifically because I know others have done it as well, but these were the tards that happened to be doing it when I filmed it.
(dunno if they shoot anyone in the vid, but they had shot several of us a few times prior to me bombing the useless dweebs.) HT staff can easily replicate this glitch/hack to see what happens.
