In Whitevale, you get a 5-man quest to kill the Dominion Warmonger in the Blasted Lands. In the area, there are Exile robots(Exile Ravager) patting around and every now and then, they will aggro the Warmonger. As long as you do some damage to it and help chip it down, when the Warmonger comes over and smacks you, just stay by your corpse and the exile robot will kill the warmonger for you.
So basically:
1) Wait until the warmonger starts fighting an exile robot
2) Come over and whack at it until it kills you
3) Chill out while the exile robot kills it for you
Helpful when you can't find a group for it and are a bit of an OCD completionist.
P.S sorry if this isn't an exploit, it felt like one to me :3