With 9 sub-factions, 36 completely new singleplayer missions, 15 cooperative missions and a bunch of other nice things, the closed beta is now feature-complete, at least as far as the first release is concerned. We're now looking for bugs & balance issues so before Mental Omega 3.0 goes into the public beta status, I'd like to invite more people to the closed beta, especially for multiplayer balance tests.
If you're interested in beta testing the upcoming 3.0 version of Mental Omega, both singleplayer and multiplayer, hop on Mental Omega IRC channel (#menthosogma@irc.rizon.net if you use a client or just go to http://mo.cncguild.net/chat) and talk to me when I'm around. I can already say that you'll require an account on http://forums.revora.net to get the beta. The amount of people we'll let in is limited.
Here's one of the battles we've recorded during a recent Mental Omega stream.