A pretty nice little arena, with lots of side passages, and WAY too many hunters. I guess if you were into practicing against them... Don't get trapped in the bob generation room.
7 maps. A few are ports of the M1 version of Lost Angles (I think). Others seem to be new. Generally decent layout, a little bit sloppy (lots of bad textures, misaligned textures, that sort of thing), but good play.
Four maps. Two are straightforward arenas, but the other two have some unique features... See how long you can stay on the hill on Piston (sniper points are placed particularly well), and InnerSpace is pretty cool.
An arena with a sort of a spiral staircase looping around and above it. Lots of wall openings, but once you're past the first ring, you're pretty much out of range unless your opponent is REALLY slow.
Imagine Everyone's Mortal But Me with deadly sniper seats... A grenade from the hill into any sniper seat will make life very uncomfortable for anyone in there, whether the grenade hits near them or not. A pretty fun secret that will never be seen by folks not using custom physics models (like the one enclosed).
Simple in design, but pretty fun in netplay. Four staircases meet in a cross, with the hill at the top. Around the bottom is another ring, with ammo... but you actually have to be coming up the stairs to get a shot at anyone at the top. Watch the walls when wielding that spanker...