A map without any sort of open area, isnt going to work well imo.
It would be too easy for an inno to delay the round by just running around forever, meanwhile I T wouldnt be able to locate last innos without radar, and even with the radar updates, as soon as you move towards the bleep, they might already had gone in this or this or that Direction in the maze.
It was a map that worked well for a murder Server I used to play on tho. But TTT no thanks