I have it and after about 5 hours beat the campaign on normal difficulty. I must say it was a pretty damn good game. They could have spent more time fleshing out the PC, he has a name, is a civilian pilot, and says absolutely nothing, even when he has a com and the rest of the team think he's dead. But anyway, the story itself.
It's the year 2027, oil prices skyrocketed to over $20 a gallon, a plague hit America, the economy outright collapsed, and then the Peoples New Republic of Korea, an emerging Asiatic superpower, launches a massive EMP attack via satellite to knock out America's electrical systems for a full year before move in on the collapsed nation. Four years later (or so, it's not very specific on the 'present date'), you as a civilian pilot named Jacob get dragged out of your house by the Korean Police Authority. It seems the KPA is rounding up any civilian pilots they can get their hands on. The first mission starts when a resistance van rams into the side of the transport bus, and as the only one of the two pilots who survive, you are recruited into the resistance because you really have no choice at this point. And things only get harder from there.
The entire series of missions all lead from one directly to another. The end result, well I don't want to spoil anything but sequels are entirely possible and much wanted. The A.I. was well.....not so great on either side. Allies often stood between me and cover, resulting in me getting shot to death unless I ran away like a chicken. They would also draw enemy fire from missiles and machine-guns to my location, resulting in my quick death. They're also horrible shots, and you shoot several hundred times better than the military. The enemies on the other hand are great shots, grenade experts, and the way bullets work on them seems arbitrary at times as to whether or not five bullets is enough to kill them or not. however I rarely felt overwhelmed by them, even in greater numbers I could cut through easily enough with a grenade (which they NEVER run from) or just snipping them in cover.
I usually died from what I called 'unlucky blast' where I walked right into the path of a random missile or grenade that wasn't even aimed at me, 'gun down' where I fail to get into cover in time and everyone focuses their shots on me, and 'reload death'. Yeah, the ammo counter is Homefront is weird and you really don't get used to it. The number next to the gun never goes down until you reload (it's a 'spare ammo' counter), and little bullet images tick off how much ammo you have. Guess how obvious this system is that I've died several DOZEN times from 'reload death'. Reloads are long, and I mean LONG. It's not a simple 'eject and slap', you manually pull out the old magazine, reach over, pull out the new one, slide it in, cock, and then get the gun ready, and now you can shoot. And machine guns take even longer!
Despite these difficulties, I'd say the campaign is definitely worth a walkthrough for a genuine 'fighting for the American dream of freedom' story, and it really shows just how much war sucks, and why it's important to support your country and be willing to die for Freedom. And if you don't get an emotional response from some of the story elemnts, I don't know what to think.