Prison returns but this time you have rockets... so it's a lot easier than it was in the original. There are a few alterations here and there and they removed the gun turrets. Overall the original Prison was better imo as it was more challenging and the gun turrets took you off guard but this one isn't bad. Dead city returns in all it's glory, I always liked this level, it's one of my favourites. Very similar to the original game. Once again, nothing new here save a few visual improvements here and there adding to the atmosphere. Brilliant level, on par with the original if you ask me. Pentagon on the other hand... wow this level took me by surprise. It's a whole new level! The mounted railguns were replaced with several waves of enemies. It feels like you're playing a survival game... until the giant spider from the original attacks you. Overall a better level than the original, save for the railguns which was a cool gimmick but Pentagon was pretty short in the original, this one is a bit fleshed out more. There is no new weapon with this DLC which is a shame. Overall it's a pretty nice DLC with the whole new Pentagon.