I've just finished the ArmA campaign for the first time... overall I feel it's average, and about half as long as expected. The campaign has never quite reached the fear factor in OFP (like the Everon retreat for instance). Only the "Dawn of Hope" mission came close to the near despair I experienced (All friendlies painted, used up my last M136 on the BMP before the harriers arrived... phew).
And then, just when I thought the game was at a turning point in the last mission I got to "The End"... should've been written as "The End...?" LOL... There's obviously plenty of story material to go on with.
I've played a bit with the editor, and I'm going to try the Perpetua campaign as well. Man, this game is begging for an expansion! I really do hope the next upgrade would bring us a new campaign Hell, I'd even be happy with episodic downloadable missions continuing where the campaign left off!
Anyway, thanks for a pleasant experience. I shall look forward to the mission editing... and the new campaigns, official or not