http://www.pcgamer.com/vermintide-2-will-not-have-loot-boxes-developer-confirms/

The finely named Swedish studio Fatshark officially unveiled Warhammer: Vermintide 2 yesterday with a gameplay trailer highlighting some of the new features—character careers, Heroic Deeds—and also a few fine members of the Chaos army that's joining the fight. One thing it didn't mention, however, is how it will handle loot—and, more to the point, loot boxes.   

Fortunately, the answer is both simple and short. "We will NOT be selling loot boxes, or selling keys to unlock loot boxes," community manager Fatshark_Hedge wrote during a Vermintide 2 reveal stream Q&A on Reddit. "Loot comes from gameplay, not your wallet."