http://wccftech.com/warhammer-vermintide-2-leaked-steam/

Warhammer: Vermintide 2 just appeared on Steam way ahead of the planned reveal. In fact, according to the video teaser available below, the game was supposed to be unveiled on October 17th.

In the meantime, we can check the first in-game screenshots of this sequel as well as a brief overview and full, albeit temporary, system requirements for the PC version.