Please change the line in your config, which calls the ex textures. Right now, it produces only texture errors:

"Please do not load the textures directly from textures/yves_allaire/ex but from textures/yves_allaire/ex/ex256 or textures/yves_allaire/ex/ex512" (quoted from http://quadropolis.us/node/2792)

There is a superfluos line the config, too. Please remove it, it just produces an error messages, when loading the map.

19/07/2020: reworked map.

Dude, I know this map since long ago and I'm glad it's done!

Quick note that as is, your map does not work in SVN - the config you have included is bad and one must only get the ogz if they want to try your new version.

That being said, I went through it myself and made some adjustments to it. First of all, kept the SVN config as it's the only way for the textures to work. Removed the map var definitions from the config too.

I filled a bunch of holes in the geometry of the map, skytextured invisible faces, fixed misaligned cube faces and texture errors around the whole map. Picked a different skybox, adjusted lighting all around the map, added particles to jumppads and changed the ambience.

A bit of a makeover overall. Feel free to add this to your node:
https://www.mediafire.com/file/ud63t4yzbsdowpx/map_hdm3.zip/file

PS: your node picture seems to be for the wrong map.

I'll be online in late Eu hours, come by if you want to playtest.

:P