http://www.pcgamer.com/warhammer-vermintide-2-gameplay-trailer-showcases-the-new-chaos-army/

The Left 4 Dead-like dark fantasy extermination sim Warhammer: End Times – Vermintide was one of the happier surprises of 2015: Expectations weren't what you'd call universally high, but it turned out to be a really good game. So it was far less surprising when a sequel was announced in August, with the promise of a full and proper reveal on October 17—which, as it happens, is today. 

"Vermintide 2 is the evolution of the genre. If you liked the first game, you’ll love the second.” Fatshark CEO Martin Wahlund said. "We have listened to the community, analyzed hours and hours of online playthroughs, and combined this with our passion for co-op games to bring you the very best experience possible."