Despite the endless dribble from over obsessed and never satisfied "elitist" (If you can use such a word since most of the ARMA players I've run across can't play the game for very well) I can point to several key things that differentiate and place OFP: DR over ARMA/2 as a game.
#1 - The game works.
#2 - The doesn't require endless tweaking to make it work.
These two things alone will always place OFP: DR above ARMA2 in the eyes of both reviewers and gamers.
That's really rich coming from you. Considering that BIS did the same exact thing with ARMA2 and left the community to fix the majority of their screw ups from poor Q&A testing. And, well, everything.
It took me several months since I purchased the game to be able to actually play and complete the mediocre campaign that BIS made. Why did it take that long? Because that's how long it took for BIS to patch and fix something that should have worked on day one of the game being launched.
I mean really, has anyone ever played a game where the single player portion is broken and unplayable other than ARMA2? Oh wait, ARMA1. Never mind.
Majority of the reviews from notable and respected reviewers are in the positive. Sorry.
I read this entire thread and I would be foolish to not expect every one of you to challenge me. But please, I welcome it.
The two points I presented at the beginning of my post will trump any argument you can make when trying to compare ARMA2 to OFP: DR.