An utterly broken mess of a game that takes everything that was good about the base game and turns it on its head, introducing new bugs and glitches, downgrading the server quality and having been more or less abandoned by the devs (long standing known exploits which the devs have failed to fix means you can expect to see people glitch outside the map on Fjord almost every match, for instance).
The expansion's combat mechanics are fist-clenchingly, rage-inducingly broken and follow little logic from the base game. Terrible hit detection and an even worse spawning system result in almost every death being a cheap one, with little you can do to improve next time. The sense of learning is largely overshadowed by cheap and nonsensical game design.
There are 2 or 3 classes that overpower the rest, and 2 or 3 loadouts that are abhorrently, brokenly OP.
This was a cash-in with the Deadliest Warrior TV show. That should tell you something. Torn Banner made a few skins on their already existing game for little effort and cashed in a nice check from the Spike Network.
In my short time with the expansion I also witnessed 3 hackers (I assume there are many more, if it was that easy to find these in the 3 days I played).
It will be fun for the first few hours while you unlock stuff. After that it's all downhill FAST. I hope I don't get tempted to touch this again and I hope you don't either.
I'm not usually this critical, having been able to find value in even Chivalry: Medieval Warfare with all its glitches and other problems. But oh boy, if you thought Medieval Warfare had problems, wait 'til you try this one! (Just don't).