Operation Force: DR vs. ArmA2

After reading the review in PC gamer on Arma2 as well as watching some excellent youtube vids + reading the preview/demo report of OpForce:DR, I am stuck on which one to chose.

In the long run OpForce:DR will win as it is on all platforms to play but for the short term is it worth upgrading my computer to play ArmA2. They are both very similar games but I imagine that OpForce:DR will be more user friendly as it is aimed at the mass market whereas ArmA2 will focus on realism.

I think I will choose OpForceDR for X360 as it cannot not be simple with limited buttons - Discuss

I think you mean operation flashpoint...and ArmA2 by a mile...it's by the people who made Operation Flashpoint 1..and ArmA 2 looks to be a proper successor

ArmA 2 is much more true to the series. Focus is on simulation. OPF2 is a sim that has a lot of arcady elements to make it more marketable to a mass audience.