Hey Method,
let me begin with the following Screen :

as u can see im missing the textures of the cell-phone here and in serveral different spots.
The other thing is the Folders. I would suggest that u dont create them like a block. Would be nicer if they would have a shape like a triangle (viewed from the side).
And u could use different textures for the different surfaces of the folders.
As ist already is said before, there are some issues with ur AI. But all i could give here as in advice is the Tutorial which the Brain already postet.
I was looking for an english tut for the Sprayroom, but didnt find one spontaniously.
But dont worry, excluded the killroom and teleporter tunnel, the sprayroom is a standard room which is connected by a teleporter which is tagged as syc-tele so that the engine knows to change the players weapons with the spraypistol and vice versa on the way out.
If u wont find anything in english i could try to translate the relevant parts from the german tut for u.
Its a nice map method, and i think it would be fun if we could arrange a custom map padday on day, where we could integrate ur new map, hectics new work and all the others too.
best regards, keep up the good work

saha