The current pre-release of the client ("pioneer" in the version) is only compatible to itself. So you can only play with other testers. Please be aware!
Something is currently happening with alternate game modes when BlackOps is on.
The symptom is that the game 'freezes' but you can click on everything. The game just stops playing.
Our group has also had this happen in Phantom-X and Survival map games. Turning BlackOps off lets us play botht hose modes.
