this just looks plain awful, All the geometry are just cubes, you didn't even bother to twist, and modify them by the looks of it.
There are 3 entities outside of the world, and there's an invalid mapmodel specified
The weapons are all in one area, all crowded up in one place, meaning the weapon balance is terrible too.
The lighting, don't even get me started on that, 4 lights in the whole map and they all have a radii of 0.
Truly you are a lot better at texture selection than mapping, That along with the maze is all I can commend you on.
Just out of curiosity, how long did this take you?
Just curious as I can produce maps like this in under 2 hours.
~Hirato Kirata