Some of the blue barrels still aren't quite right. Some of the spawns are backward. I don't really like the camper ledge you teleport to.
I figured it might be beneficial to watch a demo of some other people playing. When I loaded the map up on the beta server, there were a couple people on, so this should help you get an idea of how people react to your map, what they get confused by, etc., so you can try to improve it.
Edit: Also, there's an unknown/none texture somewhere in your map (try the texture search feature in BSP). You should fix that.
Edit2: You should also check out the ladder tutorial so you can make ladders that you don't get stuck on the sides of.