fwiss: After connection is broken to the masterserver (for example, loading the savestate) the server will make no attempt to re-perform that initial connection to the masterserver, and autoquits. This forces you to regenerate the map.
Shouldn't be too hard for the dev to prevent the server from closing, allowing savestates (basically saving the entire virtualmachine state) to be temporary solution for map saving.
Just reporting my findings. Guess there's no save feature as of yet.

As for connecting to my own server.. Can anyone connect to their own servers?

Yes I was thinking about making scenario maps where I would set blue as heavily defended and green running up the beach.

Naka: Servers are fine now, never dis-connected yet.

Tried doing savestates from a virtualbox, if only the server didn't crash on losing connection to masterserver it would likely be viable!

Do the maps you generate get saved somewhere, and if not is there a way to save it? I'm sure it wouldn't be too nice if the masterserver decides to quit after making a base.
Also, is there a way to join your own server? Perhaps change the port you connect on?