Get into ironforge as horde. Works best for rogues and druids.
Once in IF make your way to the battlemasters. You must get around the battlemasters and to the right rear wall.
Jump on the ledge bellow the airplane launch pad and then on top of that launchpad (the tracks).

Go to the end of the launch pad where it curves upwards then lay down using /sleep.
Once out of stealth the battlemasters will try to attack and kill you but they cannot reach you and do not leave their location.

They will do a wirlwind in place and kill off any alliance standing next to them.

This works best when teams zone out of wsg,ab, and AV.

Have fun.

i tried this on the 1.11 test server, didn't work....jeez i dont mean to be an arse but 9/10 of these 'exploits' dont work, have you people really tried doing them?