I like the layout of this map! DM/TDM maps are definitely appreciated
However, the skybox shader seems to fail:
And next, the texturing needs trims! It's way too plain as it is right now, even if the textures look great
Trims should help to recognize edges on the map, which otherwise can be a little hard to do fast when everything is colored similarily (color issue will probably be fixed when you get the skybox to work and send out light properly). Trims will also add to the details in the map, and there are never too many details right
BTW: You should probably ask for commit access to the maps repo, so that you can:
1. Commit your texturepack into it's branch (so others can merge without also merging your map, and so the textures are all in one place)
2. Commit your maps into their own branches (and merge the textures branch into the maps where you use your textures)
#2 means that your maps will also get compiled automatically, so that shader fails like this just shouldn't happen (it will look for shaders everywhere instead of just shaderlist.txt). Also try using the xonotic-map-compiler script.