question about mp system

[Dagobert]

hey guys,
i got a question about the mp system in Men of War.
As I am informed there exist three versions of MoW.
The version you buy at your local shop in a box.
The version you can download over steam and the metaboli version.
I use the metaboli version and i realized that I can only join a few games, sometimes I even see only 5 games at a time. I use the latest patch with the Japanese wich is not the official one I guess. Is this the reason? Or are the gamers who bought the Steam version seperated from the Metaboli users?

greets
Dagobert