Ok,so the title is a little misleading, in fact they are Forge World's quite recently released Mechanicum Thallax Cohorts for the Horus Heresy. But after looking the models over and then thinking how bad Games Workshops Obliterators look, I figured they would make great alternatives. Which I think they really are if you put the fluff to one side. I currently play a Deathguard army and for me they fit in perfectly. So hope you like. Anyone else using them as Obliterators? Or anything else ? I'd be interested to hear.