Game is relatively entertaining until you have to do those stupid button matching moves, ala Gears of War to go past a cinematic scene. This to me completely takes you out the mode for the game. This actually ruined this particular game in my opinion.
I wanted to write a review of this game because I liked Undying so much. Anyone who enjoys first person shooters will tell you this, "I like to shoot stuff". This is where the whole problem starts for this game. Most of the characters are typical and you don't really care what happens to any of them, that being said, when you start out you'll have to control one guy. Now, all your AI teamates are basically retarts and you have to spend the first hour or so of the game healing them which leaves little time to "shoot stuff". Eventually you'll be able to swap to different members which is neat in a "Fallen" kind of way but you'll only use maybe two or three character through the whole game because most of them suck, unless of course you have to play as a certain character to make if past an obstacle. All the enemies sprint towards you full speed and you can unload on them, this would be fine only your stupid AI teamates do the same to the enemies and die. So most of the time you hear your teamates say "why are you shooting me, we're on the same team". This gets very old and repetitive. I'll lay the rest out quickly, run down a single predetermined path and shoot your teamates and an occasional monster, rinse and repeat. If this sounds fun to you, by all means, go buy it. But if you have half a brain, I wouldn't even rent it unless you're an achievement ho.
The gaming engine seems like something from the original Doom game. The animation isn't crisp and what's with all the cursing? This game is weak. Seems as if they put this together in a short time frame. Pass on it.