I need a map for this map
no kidding.
I really doubt it'll make a fun CTF game. Too many routes, too many route intersections, and it's just wayyy too big. A massive 9vs9 CTF match might be fun, but I never seen such a server even exist, not to mention being full.
Also, polycount is very high, which will cause fps drops for some people, not to mention all the polybugs hidden there.
This map might be fun in Rambo, HTF or Hide and Seek because there are many unpredictable ways of moving around the map.
4-team Teammatch will fail because of Yellow & Green spawns. It'll make the underground part of the map rarely used. Add some Yellow/Green spawns to the lower part of the map, scatter them around, or make green team spawn in tunnels and yellow on the roof.
One suggestion on the visuals: Make underground background a little darker. There's not enough contrast between background and the polygons.