I think it's time we had a Lost & The Damned tactica on warseer.
So what are you currently fielding in praise to the ruinous powers? A horde of mutants, a renegade Imperial guard unit, or just a random hotch potch of stuff?
I'm thinking of starting a chaos cult with lots of traitors and a couple of mutant squads. The army will work much like a regular Imperial guard unit, but with some assaulty goodness in the form of 3 defilers while anti tank fire is provided by lots of traitor sentinels.
Might get some chaos hounds for speedy distractions too!