Now that I have a real overview to look at, I can give some feedback.
To start, the hallways are extremely long and straight, giving snipers a huge advantage over other classes. The best example of this is the two hallways parallel with the turbines: not only are they two of the more direct routes to intel (from what I can understand), but they also have no cover whatsoever for players attempting to push them. A normal sniper sightline is about 2000-2500 HU long, so do with that as you will.
Second, the layout itself may be a bit confusing due to the various branching paths and huge distances players have to cross to reach a room. I recommend adding signs to point players in the right direction (if you already have those, than great: I'm just going off what I can see in the map overview rn.)
Those issues aside, I do want to say I'm pleasantly surprised at how good the map looks and how accurate to turbine it really feels. Keep up the good work!