How to play or create coop missions?

[KDN]

I have just finished trying all short of variation to launch a cooperative mission in Multiplayer environment.
Tried:
Regular Player/server
cooperative missions from cooperative folder
cooperative missions from dogfight folder
cooperative missions with spawn places

Dedicated Server
mission load as above

Result: Only host in the Regular Player/server can select the planes in mission.
All other client can only see and use the spawn places.

I wonder if there is something in FMB that we suppose to include in the cooperative missions or...multiplayer is not quite ready yet.