http://steamcommunity.com/sharedfiles/filedetails/?id=133847491 -- Shameless copypaste from the description. "ttt_bunker is a large sized map designed for the trouble in terrorist town gamemode, it's large size is suitable for large amounts of players and features working elevators, multiple floors, detailed outdoor and indoor areas and an exciting objective. Fix the rocket by finding the red, green and blue engine parts and placing them in the open compartment of the rocket, then find the red and blue keys to initiate a coop launch sequence located in the control room. once both of these objectives are done the launch button will unlock and players can activate the 30 second countdown before the rocket launches. Launching the rocket in the ttt gamemode will trigger a victory for the innocent team." -- Bunker seems like a well-designed map that is bigger than other popular maps like Fastfood and Waterworld. I believe it could work as a suitable replacement for something like Terrorception or Metropolis ( I love Metropolis, but I never really see people playing it. )