Skull of Shadows (SoS) is a Polish mod that replaces all the factions.

I'd like to add that EWA already has a lot of new neutral units, but, as SRD rightly pointed out, many of them need balancing.

I wasn't talking about balance, but about the atrocious quality of these models, which are far from being the best. Balance isn't an unsolvable problem, because it all boils down to numbers, but why do we need balanced, but ugly units?