Just some notes on the detailing that I know was tossed around.
The red skybox buildings don't fit with the map, and the lighting on them is wonky anyways. I would suggest removing them and maybe either doing more tree's, or some brushwork buildings.
You have a lot of yellow barrels on the interior, which isn't a bad thing, but some people will point out that isn't very exciting. It doesn't bug me as much as other people, but just has a heads up.
You don't carry barrels of radioactive waste on their side with a claw (or on a conveyor on their side) unless you want to have a very bad accident.
I can tell your final strech is heavily influenced by dustbowl (and vector), even though you might not have intended it that way, but the final screenshot basically looks like an indoor dustbowl with a spytech theme, and the rest feel like ctf_vector. (I'll assume that vector was less influential that dustbowl, but the final cap area look like a direct clone of dustbowl 3-2.)