Five levels, some ported from M2 suicides, some brand new. All quite playable (except maybe Kevorkian's Rooms, which will give you a horrible headache). Deadly Ledges is very nice for extremely high-carnage games.

A nice little four-room level... sort of a space station, only with daytime landscape textures. Teleporters decrease the linearity brought on by the geometry.

An M2 level, updated with SMGs and a hidden term. For those who haven't seen it, movement is controlled by sewage-you can change direction, but forward motion is out of your hands. Takes some getting used to, but it plays pretty well.

This is a great map!!! It is based on three rings, the outer one with windows that open so you can pick off your friend, the inner one that has the most room with some aliens and weapons, and the inner one that I felt a little cramped at times. All in all a cool map with a couple of secret transporters to some secluded areas..and just enough media but not too much. Water in this case. This one can be played solo also just watch out for the inner ring. Construction is quite good and there are some cool lighting sets.