Warhammer: End Times – Vermintide is a pretty clunky name, but I guess snappy titles are the last thing on your mind when you're facing down an apocalyptic horde of man-rats. A metaphorical tide of vermin, if you will.
You can get a brief idea of what such a tide might look like in the above teaser trailer for Fatshark's co-op FP, er, B. That's first-person bludgeoner.
For more on Vermintide, check out Evan's first-look preview.