OK, for anyone who's never played the Flashpoint games before: these games are hard. You try to approach an enemy head-on, you die. You let them see you, you die. Your only hope for survival is remaining undetected while you find a good spot from which to kill your enemies. They are not really "action" games in the sense of being fast-paced and intense. Much of the intensity is just in surviving. At least in the ones I played, you were always outmanned and often outgunned, and you had to live by your wits.
I've played games like MOH and COD and they're a whole different ballgame. Flashpoint is harder, by far. So, unless they've dumbed it down this time around, expect a very serious challenge.
I think the Flashpoint games are awesome--they are not like other war games. But they are not fast-paced, run-and-gun games. They require careful planning and patience.