2fort
2fort_v1

The default map for the TF2 server. The same as normal 2Fort, except the door in RED sewers is breakable.
The breakable door in RED sewers leads to a map switch trigger, which led to ask_v1.
Discovered at the same time as the TF2 server.
2fort_v2

A modified version of 2fort with no skybox. There's a logic_timer that executes dill.cfg every 6 seconds, making it hard to join. After this map appeared, saying certain swears in chat would kick you.
Unknown.
Went here after the subroutine_hello map changed.