Would you look at the beard on that thing :21: Very fittingly, KoW’s Ratkin were indeed created by the Abyssal Dwarfs, who also use them as soldiers. There’s even a special Ratkin list (an Army Theme, as it is called) in the Uncharted Empires supplement which represents an army of enslaved rats led by Abyssal Dwarfs.
Image found on Mantic’s shop page