It's a lot like playing Space Marine, but with huge environments that go on for miles. You don't hang back, you get into the thick of the fight or your health will whittle away, and never stop running and gunning.
The puzzles are generally pretty good, but occasionally there's areas that seem unsolvable only because you didn't click the exact right area of something you've already been clicking. For example, a picture with a secret compartment that you can't open until you zoom in on it, but to zoom in you have to click on the right spot with no indication of what that is. This can lead to times when you're searching around the rest of the level wondering what you've missed, when the answer is what you were trying to do already. The Hints button help out with this, but if you're trying to go without them you WILL run into these situations.
This game has been great so far.
