I own this game and it is amazing!! If you played Doom 3 and liked it you will love this game. I only have one problem with it, Gamefly makes it seem like you can play this on your Xbox 360, well I own the game and it WILL NOT play on my xbox 360. So if you only have a xbox 360, you, more than likely, won't be able to play it. Reguardless it is an amazing last gen game!
It was a fun continuation of Doom 3. However when you compair it to the origianly Doom 3 it wasn't quite as long it seemed like and seemed like less storage lookers to get equipment from. All in all it was still a fun game to play.