Picked this up on steam the other day for a fiver and I'm glad I only paid that much for it because it's very repetitive. It's a loot driven FPS game but in my opinion they've added FAR too much loot. The gameplay is totally broken up by looking hundreds of lockers and chests that most of the time don't contain much. You may ask why bother looting them then, but I would reply with why did they bother putting them in the game then? They should have gone with quality not quantity.
I gave it 3 stars because the dialogue and voice acting is good and the main villain is hilarious, he's the only thing that makes me want to pick up this game really. It's mildy improved if you play online with other people, but I generally haven't found it very immersive at all.