A few of us have been playing these new maps so i thought i'd chuck em up for everyone to try out. They're pretty decent and deffinatly worth a look since we only have one campaign at the mo.. All of these maps are Survival mode.

http://swarmarmory.com/download-file?i=156 - Deep Freeze Survival : smallish and decent
http://swarmarmory.com/download-file?i=169 - Lost Cause : very decent and pretty difficult for 3 of us on normal, has timelimit of 10mins
http://swarmarmory.com/download-file?i=157 - Officebeta02 : large map, lots of small rooms and open areas.

The mirrors were working earlier and then crashed, so if you have problems just wait it might take a few tries :)