A couple of buildings and some surrounding courtyard. You can get to every place you can see, but the teleporters that make this possible are not at all obvious. You may have to resort to a map editor to find them... but once your group knows where they are, this becomes a very fast-moving map.

A hill, surrounded by shallow lava, and overseen by several sniper perches. Getting on the hill is non-trivial, but stop in the lava if you need a little height... This should have some fast games. Update makes the sniper perches MUCH less secure.

6 maps, and a physics model. A pretty good spread-a bungie tribute, a few KOH maps, a novelty level, and a couple of flavors of a nice paintball-style arena. Fast-paced, generally...

The main room is a bunch of walkways between raised areas. There are overlooks that give you a birds-eye view of the arena (this was the author's original impetus), and lots of back passageways for hiding in/getting to sniper positions. More ammo than you'll ever need.