Here's a preview of the middle in a4:
(Crap, forgot to turn up my graphics settings...)
I'm very pleased with it. Much more memorable and special, much better use of height... I hope this will play better.

There's a cliff here too, but it's there mainly for the sake of a consistent theme. It's pretty harmless.
I'm also thinking of renaming the map (cp_crag?) due to the lack of any sort of mud bath.

Originally I wanted people to actually slide around in the slippery mud, hence the name, but that would just have been annoying.
EDIT: Also, it's not finished. I'll have to add more railing and some health/ammo.