This is game is a great rental.

User Rating: 6.5 | Frontlines: Fuel of War X360
Why do I say that? Because yo can easily beat the game, and tire out the multi player in less than a week of casual playing ( 1 hour a day-ish).

The graphics are... OK. the textures suck, the models are pretty good, but you'll find yourself staring at some blurry congealed messes taped on to a building, trying to figure out what it is. It is a computer, a switch, a trashcan, or a dead cat?

The Sound..... it's OK. The music is nice, but the sound effects are lacking, and the voice acting is below average.

The Storyline is lousy. It's somewhat creative, but you really don't give a hoot about any of the characters, feel in anyway attached to what's going on, and it's really nothing more than a series of cut scenes used to drag the character around into various settings, And the ending SUCKS. In the game, you are supposedly fighting Russia and china, but you never actually fight china, yet you somehow won. Meanwhile, a liberal blogger with bad stubble and voice acting constantly follows your squad around making annoyingly over dramatic speeches about the post oil era.

The main issue is that you can't have an open ended battlefield style game, with characters. In an FPS or RPG, when your character dies, you start over. But in Front lines, they just plop down another generic guy.

The Game play is where is this game COULD have really shined. It is promising enough, having characters control territory ala Rise of Nations, while having to accomplish objectives in order to expand the front line.
But there are still issues.

You see, in order to simulate the chaos of battle, as seen in action movies, as opposed to real life, Your AI team mates seem to just run around/ spawn in random locations, while shooting at enemies, who also spawn randomly. When your running around on the ground, you think " cool, it's like a real war", but as soon as you stand back and look at it, it looks more like a haunted house, wiht generic characters popping up to trick you into thinking the developers made the game realistic. Also.

THE AI WILL N-E-V-E-R KILL ANY THING. You can watch 5 American tanks fight 1 Russian tank for 10 minutes, and the Americans won't kill it.

So all in all, it's nothing more than an average FPS, with capture the point gameplay slapped on.

And in a world where games cost 60 bucks, 40 British pounds, 100 Quid, or 50,000 yen, do you really want to waste it on this, when there are so many better games out there?