ayyyyyyy :D

Overall I think this is a really cool map concept, but it seems really CT sided.

I think maybe the vents could split off to have two exits, on either side of the bombsite, giving CT's an extra position to watch.
I also like Zilla's suggestion, to make a 2nd route for T's to take, either a cave or an above-ground route.
The garage door entrances for the CT's to get to the upper and lower site, if they dont want to take the stairs- Maybe connect an entrance to that, making it a route for T's to take.

Smaller things I would change-
1. the glass in the window room the CT's can sit in. It really bugs me that you can shoot through it, and you can throw nades through it, but the glass doesn't break :(

2. The railing all around the upper site- Either remove it, or get rid of the support wires/cables (not sure what to call them) I'm constantly finding myself behind the missle box on the upper balcony, trying to drop a flash off the side- only to have the flash get caught on the lower parts of the railing and bounce back at me.

Overall, this is a really cool map idea, and I'd love to see it in an operation :D