bilalogbilal

Hey, Ive been watching Arma 2 with the Dayz mod and it looks freaking awesome. But than i stumbled upon arma 2 in general and it was even more awesomer, if thats even a word. My issue is choosing the right game to buy. Ive tried reading here and there, but i wanted to ask the guys who play it. Ive got Arma 2, original already. Arrowhead, combined and Reinforcements are all standalones from what i understand. Witch of these the the most popular? I want to play... thank u :D