I've played Operation Flashpoint: Dragon Rising. Played and loved Project Reality but deleted it because only UK servers were only active most of the time and my ping was way too high.
I've heard ARMA 2 was super buggy and not worth playing but I finally tried both the demo for ARMA 2 and Operation Arrowhead and both are incredible.
I'm on the verge of purchasing Combined Operations, but I'm worried there aren't a lot of US servers and I'll be playing single player all the time (eventually gets old)
I live in New Hampshire btw.
Thanks to anyone who answers this, high hopes that I'll be buying this game.