Warhammer: End Times - Vermintide's Karak Azgaraz DLC, besides being something that's next to impossible to pronounce quickly, represents a whole bunch of new content for the premier co-op rat-slaying simulator set in the Warhammer Fantasy universe. Much like the previous DLCs, Karak Azgaraz brings with it three new maps to explore, each one with a variety of mission objectives and rat-bastards to slay, as well as a two new weapons you can use to poke holes in your enemy's faces: the Dwarf Ranger's Warpick, and the Witch Hunter's Falchion.

But rather than simply blabber on, allow me to instead show you the most recent trailer. It features pretty much all of the content present in the DLC, everything from the three new maps to the two new weapons, so you should get a good idea of what to expect from Karak Azgaraz. Have a look:

If this sounds like something you might enjoy, you can find out more by heading over to Steam. And for those among you that play Vermintide in a group of friends, do bear in mind that only one of you needs to own the DLC in order for these maps to be available to your group. The weapons are restricted to the DLC, so if you were hoping to get a free Falchion I'm afraid you're out of luck, but other than that you can save a little bit of money by only grabbing one copy.

As for the free update, you can find the full patch notes over at the Steam Forums. But if you're just interested in the short version, here are the highlights and a couple of images showcasing the Dwarven fortress:

• Added some weight and variation to ragdoll behaviours

• Added physics to a number of props in the Inn which were previously static

• A new HUD has been added when playing with controller

• Added options to switch between XboxOne and PlayStation(R)4 icon sets for controllers

• Added option to switch between different controller layouts

• Added Auto-aim support when playing with controller

• Added mouse scroll inputs as keybindings

• Added option to disable/enable "Give Items with Block Key"

• Franz Lohner no longer whistles cheerfully. It is the End Times after all 

• This patch contains all the optimization that we did to get the game run on console hardware. It targets CPU-heavy systems where we have seen general improvements overall. It also addresses lag spikes and where lot of AI or physics are in play, lag spikes in specific situations such as VO and resource loading. It should also gives us shorter loading times.

- Lots of code has been moved to less used CPU-cores, and runs more in parallel.

- Added multi-level navigation pathing for enemies. So enemies should not get stuck no matter how far away from players they are.

- Heavy optimization of all shaders.