The basic premise of this net level is that it's set in a winter climate where snow and ice cover the ground, the result of which is that your traction with the ground is greatly reduced. It takes a while to learn the new techniques necessary (don't hold down the run key for a long time and use weapon recoil for maneuvering), but it can be fun once you get the hang of things. The map itself is fairly big (> 4 players would be best) and set up for multiplayer carnage with open large chambers on multiple levels, linked by elevators and narrow staircases.

A large, three-level parking garage. I wish the garages I park in had this much space to manouver... but the construction's pretty nice. The upper level's open air, the middle level's pretty well lit, if mostly enclosed, and the bottom level has a serious need for an electrician. Whatever your playing style, you should be able to find an area to excel here. Could be pretty slow for small groups, due to its very large size.

A very complicated map, with lots and lots and lots of secrets. Too many slow-moving elevators for my taste, but if you're willing to take the time to get to know this map, you will find that there are a myriad of ways to kill your friends. As the author says, "the map is your weapon."

A medium sized circular arena, covered with a regular grid of tall pillars (the stone forest). The center of the arena contains a shallow water filled trough forming the hill with shield rechargers on either side. Suicide rates are bound to be high. Watch for the teleporters to get a better vantage point over the arena.