I have purchased this game, after playing it from about a week after it's release date I can firmly give my opinion that this game SUCKS!
Single player is okay and the graphics are top notch.
What I really dislike about this game is the online multi. Maps are too small and make you dizzy with running around in circles all the time. The host leaving in a rage fit and having to find another one is a big annoyance. Can't stand all the bunny-hopping either.
After playing Armed Assault 2 for awhile now it just suites my taste better. Huge world to play in, plenty of weapons to choose from, being able to pilot a Cobra helicopter, drive an M1A1 tank and many other vehicles. Yeah it's a much better game PvP wise, especially the AAS (Adavance and Secure) maps.
You actually have to think in ARMA 2, not run around like a bunny-hopping idiot....lol