1. Use mindcontrol on a opposing faction being attacked by your npcs
2.when the die you should be attacked
I found this out on ptr so it might not work on live and im not sure if the instructions are quite direct enough, this only occured once (there was a raid in TB) a frostwolf emisarry and a bluffwatcher attacked me, hopefully this will work on live it might take a couple of trys cause you might not aggro, also you cant attack them.
HAVE FUN!!! :wave::wave::wave: