Another background question!
Would the Iron Warriors look like they did Pre-Heresy or would they look more like the Chaos Marines that we see drawn on the covers and boxes?
Wouldn't these marines have about the same armour but with some skulls or spike additions and maybe a symbol of Chaos to denote the fact they acknowledge the Gods of Chaos? I just can't imagine the armour having the crazy designs they have all over them.
Thanks for the responses!