Hello! Great map, I can see you put alot of time and detail into this map. You are probably already looking into clip brushes and things like this. But here are some locations I have managed to get stuck, or slowed down. I also found some bot spawn locations in deathmatch that spawns the bots and or players in locations they are stuck and cant play. I took screenshots of everything and added descriptions.

Here is a link to a Imgur library with all the screenshots and descriptions:
http://imgur.com/a/cYpKn

Or you can just look at my profile for all the screenshots.

Thanks for a great looking map, best wishes!