If you live in Europe you can get Arma X: Anniversary Edition for 36€ which is damn good deal because it contains all Armas with all expansions.
I think ARMA 2 would be good to get because of DayZ, but its your choice.
If you buy ArmA2/OA, the decision to buy ArmA3 will make itself.
Go get ArmA 2/OA . . . don't wait. In the meantime you will get familiar with the game mechanics and the controls before ArmA 3 is released.
Do you like music?
Originally Posted by walker
Took out myself and two other squad mates bouncing a grenade off a wall.
Originally Posted by CarlGustaffa
Bah, I've done that since OFP I can't hit a barn when I'm trying to. But with nades, I can hit a barn when I'm not trying to
Yeah definitely get it now. Like others have said you'll learn the game. maybe find a good group to play coop with so that soon as ArmA III comes out you can get straight into coop with them. Team play is what makes ArmA IMO and have a good group of people to play with WHO COMMUNICATE with each other is awesome.
I think all the ArmA's are great. It's good to have all of them if you want some variety, because they all have different missions. They're all fun, and all worth playing.