Left4Dead in Warhammer interpretation. Fanboy, but not completely original (8/10)
The difference (and kind of a good plus) is that your hero is limited/special in his skills (Mage, Ranger, Warrior, Inquisitor, etc.). That is, not everything depends on the weapon you choose during the game, but on the class you choose at the beginning of each mission.
The similarity (and as a result a fat minus) is that you seem to be playing L4D mod for a lot of money. There is a tank and a rat that spits acid... in my opinion, the bosses could be thought out a little better and differentiated from L4D.
All in all, 20 minutes of jogging with noobs like me ended in death, but it was pretty fun.
Recommended for fans of the Warhammer Fantasy setting.