After futzing with Galaxy Forge for a little while I think I actually have a playable [albeit: complex] map. It's designed for 2v2v2v2, but surely people will find a way to have it be anything goes. I haven't played it through all the way to the end, so there could be imbalances, glitches, etc... I would consider this map a work in progress, or a diamond in the rough... Though it is called a Diamond in the Rough for more reasons than one, as you will no doubt see.

Updated:
Removed a few phase lanes, added a targa for map selection screen. A few other tweaks here and there.

http://rapidshare.com/files/89744956/Galaxy.zip

Let me know what you think guys.