As a new player to arma 2 and British Forces add on I would like to play some campaign in co-op mode. I looked at the mp browser and its so confusing, sure I can see all the co-op listings but dont have a clue how to join with people who have my version (no mods) Can anybody help me? or fancy joining me for a game or two?

Steam > oOPara73Oo
Age : 38
Location : Leeds UK
speed : 10mb

I have teamspeak 3 : oO Para Oo

Thanks.

Andy.