So I did myself an unknown favor and picked this gem up yesterday, it does have a few minor issues but all in all I can't recommend this game enough. It's creepy claustrophobic atmosphere and narrative(apparently based on a cult classic Russian novel) are amazingly done. This might take on Earth Defense Force 2017 for my #1 Sleeper Hit for the Xbox 360 title.
If you like immersive story driven shooters I strongly urge urge you to pick this up, plus it has a sequel in the works for 2012!!!
Sorry for the slacking posts, i've been incredibly........lazy(Ibet you thought I was gonna say busy!)
Here's the trailer for the new game. I personally can't wait.