This is a fun game.
It ain't Battlefield, though it certainly tries very hard. Bad news first: Servers are down, you won't find anyone to play with online. Thankfully, the single player mode has a lot to offer. If you're old enough to remember Battlefield 2 and how they said it'd have a single player campaign, I'm pretty sure that's what the designers of that old frigate had in mind when they thought about it, even though it never came through eventually (thanks for that, Obama!).
Graphics are still decent, weapons are neat, vehicles rock. The little boondoggle drones keep ingame monotony down. The story is surprsingly well written. I really liked how much thought went into all that just-slightly-beyond-tomorrow-tech - the experience is similar to the recent 2020-future Cowadooties, though far less spectacular, of course. Still, the designer's artistic achievement is to be applauded, if Call of Duty Advanced Blabla comes up with pretty much the same ideas five years later.
Naturally, the immersive aspect is rather reduced when compared to a big-budget game like Battlefield. Often you'll find yourself just blasting at simpleton foes or hammering away at a distant installation with and IFV chaingun. Nonetheless, I was playing through this game with a big grin on my face, if only because it actually felt like a good old GAME instead of these new overscripted pseudo-movies. I'd give the single player experience a straight 8/10, though that number drops significantly after the first pass.
Like I said, a real fun game. Definitely recommended when on sale, you won't regret the four hours or so it takes to finish. After that, go for two double cheeseburgers at Mickey D's and feel like you're 15 again and all's well with the world for about an hour.