I don't see any reason for not having proper cubemaps in any public release, beta or not.
Sounds nice though, I'll give it a try!
PS: That's a super-slow download location for the map. It would be nice if you could load it up somewhere else.
Hey, nice to see people creating singleplayer maps. I'll give this a try when I get a chance.
Check out our snarkpit 'map from base' competition.... we just finished round 2 (yet to pick a winner), and will be moving on to round 3 soon.... we need more participants,so check it out.