wildddogy225

I have cd-key for Arma 2: Combined Operations, and i dont know were i have to use it to download the game. Can someone tell my how to activate that key so i could download the game?

So i bought cd-key for Arma 2: Combined Operations store in my country, and now i have no idea how to activate it and download the game. I searched the official arma2 website and i didn't find anything that says how to do that. Any suggestions what to do?