First to Fail maybe. 'Semper Fi'xing to get my money back!
First of all, if the Marine's use this as a training tool or anything based off it, we're in trouble overseas, that is for sure! Graphically the game is strongest just as the GS reviewer said, but there is not much physics as to your enviornment, be as georgous as it is. Textures are sharp, and gun models are well done.
However, the player's POV (Point of View) is something else to be said. The camera has you fixed on this backround zoomed POV, and you basically have heavy loss of peripheral vision, or to put it simply, tunnel vision! Now the close quarters combat is zoomed beyond acceptability for any reason. This is one of the worst problems hampering the gameplay.
When engaging the enemy whether from afar or by room to room clearing, you will find your 4 man fire team (if that on multiplayer) is very capable of dealing death to a whole division of the opposing force. Even with artillery, airstrike, mortor, or sniper support, the combat is so unrealistic, i can't see this ever being based on a training tool for the Marines. Depending on the difficulty you set it at, the AI is do-able, but that in all clarity does not matter when you face as many as you end up doing.
The missions themselves are so quickly thrown together it is almost embarrasing. You hear a very brief and almost emotionless order over the radio (which usually comes at the exact time you can't hear anything while shooting the last enemy that triggers the order) that gives you an order that you'll find later is really "Kill 2000 Syrians and then report back to base". I know military = no emotions when it comes to orders, but i'd like to feel some sympathy when im supposed to kill as many people as i'm about to. Real life combat isn't always epic battles against 100+ enemy in a hot firefight! I can't wait until game developers realize that. There is no story, even with the CNN style news reporting, it is a sorry excuse for an attempt to make you feel engaged in any way.
Sounds are solid, loud as ever, and another strong point for this game. But i think by now you don't need to read anymore to get the idea. Don't buy this game, don't rent it for Xbox.