The whole map is basically a brown and dull forest with slight deviations to the formula. The ending is incredibly disappointing, with it being an exact copy of Dead Air's ending for some reason.
If you want to be extremely bored and left disappointed, play this. I know this was a L4D1 port, but that doesn't excuse the original creator for working with a slightly older game.
No point in playing.
This review was posted before the latest release.