OK, since mrtn is not going to allow it, and this is the WH discussion thread, opened so we can discuss unofficial changes, I suggest this.
You change the Dolgans (plenty of tutorials on how to) to some sort of Mortals, mostly marauders, of chaos - light infantry and horse archers, with some chaotic influence like chaos trolls, chaos giants (ettin), chaos dragons (a recolor or LMR`s unfinished project

), hounds `n such. Also, if you accept my version of the greenskins splitt-up, the Uruk warrior goes freelance, and he can become a 2nd defense foot marauder with a balanced offense, like the Bestigor is right now. What do you think?
Or the current chaos warrior (less blessed or something

goes offense, Uruk goes defense.