Invasion 1944 v2.5 question

[LeadMeister]

I already have ARMA2 on Steam. If I now buy Operation Arrowhead through Steam would I be able to run Invasion 1944 v2.5(CO)?

All that I've read so far indicates that I need the "combined install" version of ARMA2+OA for I44 v2.5 to work correctly. I'm now kicking myself in the rump for not getting ARMA2: Combined Ops to begin with.

Please advise - Thanks

[Toto pectore]

Arma 2 + Arma 2:OA = Arma 2 CO ;) Therefore - yes. And you don't even have to buy it on Steam. Just run A2 at least once before you install OA.

[LeadMeister]

Arma 2 + Arma 2:OA = Arma 2 CO ;) Therefore - yes. And you don't even have to buy it on Steam. Just run A2 at least once before you install OA.

That's really good info. - Thanks