Big fat open areas inside a simple castle fort. The theme is consistent, defined by high archways, lots of stone and gothic trimming. Layout is well connected although the distance from one area to another is so great you may find yourself strafe jumping every where. Game play is nice and engaging in a 3 player DM with the focus around the Railgun. InstaGib games are pretty cool too, especially 2vs2 matches. Bots play ok but can often be found close to the Railgun.
Simple structure with lots of room to move.