Ok I hava tried everything now..
Inviting a Vista/Win7 player to party and then go to play public and get a game. Inviting a Vista/win7 player during a game and finishing that one and after that play another game. Still nothing..
Even worse is that my damn seciondary account got it and we were both in the same party I'm sure. Am I doing something wrong? I've never heard of anyone have achievements glitch on Shadowrun but I'm at a loss here.
Please help if you can.
EDIT: Nevermind. Of course it unlocked 2 games after writing this.- Typical. Sorry fo rthis waste of space. Stil not sure what was wrong. Unless it also takes 8 players to unock it in Public matches