Two huge rooms (lots and lots of smearing) filled to the brim with aliens, and bobs, and S'pht'Kr. No weapons... you're supposed to do your fighting with what you can pick up off the dead bobs... Frame rates below 5 fps on a Q800.

The focus recently has been on solo levels, but this is a pack of 26 consistently very good net levels. These guys like narrow raised walkways and sharp corners, but overall, flow is great, texture choices are very tasteful, and weapons are plentiful. There are some very cool tricks (I liked the stairways on Pseudo Bridge a lot), and nice lighting on several maps. No matter what size your group is, you should find maps you can die in here...The only downside is that they're actually asking for money if you like the maps. Update fixes a couple of small bugs

Take House of Pain, open up the outside walls, add crossed trenches in the center, and brighten up everything considerably, and you'll get this well-built large arena, equipped for up to 8 players comfortably. Nice roof...

A four-story house, with a yard. Overall, this is quite impressive. The attic is great, and the sniper positions outside are pretty cool. The interior (first and second floors) are a bit cramped... but what would you expect, running around a house with weapons of destruction? Check under the stairs in the basement for a Bungie-esque joke.