Lethal Injection v2.0
A small central arena (with a smaller central room) and a passageway (with secrets) around the outside. I think the intention was to make the central room only escapable by shooting switches, but the platforms that block access are player controllable... (Read that as: there's an easy way to get that spanker.)
Levels in map "Lethal Injection.v2.0":
Lethal Injection