Then you don't know much about the source engine to think like that.
Please don't try to port the map, just copy and paste all brushwork into a new .vmf and start again with the correct sdk version.
This is an assumption...
Anyway I think i failed epicly, didnt think about that, I thought Garrys mod could alrdy handle that. So as its takes a whole lot of time to get all this stuff into another version of the SDK i will finish this map for CS:GO and afterwards I'll start a new project with bigger corridors and stuff. I will post that map for everybody who owns CS:GO when its done!
Edited by Dago, 12 August 2013 - 18:04.