That map was born completely from scratch and out of boringness some time ago, when I passed the spot where the map is done layout-wise, which is also the point where I won't turn back and leave the map as it is :)
The map was played in an earlier stage on the first map beta test day and there were several releases in IRC and a lot of people already commented on it and gave some appreciated suggestions. To name at least some: Drakker, eihrul, viruz, SomeGuy, shmutzwurst and more. Thanks!
The map features a couple of different ways, an extensive mine section, some texture blending blablabla. viruz also contributed some geometry.
Ahh, and I don't want to forget the fancy spawn room doors: you can get out, but not back in :o)
Have fun and good luck!
Edit: one last bugfix - and it's included in svn already, so d/l it directly from there :)
for safety reasons, I put the final version in here, too.