here are some suggestions i had:

-replace the lighting with the one from old vertigo
-add clip brushes to prevent people to get stuck (i got stuck on the burnt wooden pallets in t spawn)
-replace the hs level fence on ct spawn with a higher one or replace it with walls.
-add a chokepoint to a site from ct so you don't have to go on that bit of higher ground.

- make the gun room on B site only wallbangable for certain weapons like the snipers. You can spam AK and Deagles through the wall while the outside is made of stone.