
Anyway,I've corrected some errors,but I'm not finished with it yet - I'll post the corrected map either today or tomorrow. Generally,it's still a big mass,so I have to suggest you to look at my corrections,and start over the map - I'll tell you more next time what else is bad.
EDIT:
Ok, let's see:
http://akion.planetnexuiz.de/nexuiz_maps/zazu.map
First off, notice the file size


I won't go now into detailed explanations, but I've corrected some parts of your map. It's really far from perfect (wo. redoing from scratch it never will be), but you'll get the basic idea.
Another problem: look carefully for the centers of the entities: they can be seen as little axes inside the entity model. Those can't be inside a brush, either your map will "leak", and you won't be able to compile it. I've moved all the entites a bit, probably broking the jumppads with it, but at least the map compiles.

What I'd tell "too difficult" to do in radiant are those glass bubles. They'd be better as models, made in a modeller app.