OK, for once i'm getting in first with a bit of news (Sorry Rab me old mate but i'm just so happy to get it finished hahaha
Map is being beta tested as we speak.
It is, as far as we're able, 99% finished. At every turn we've run into limits - geometry, indices, size, and (to make it work with mods) model limits.
As such its not quite the map we were aiming for, but its as close as we can get it.
I think we just need a loadscreen and a few tweaks and it should be good to go - as a general open beta at least.