Basically, it's Dynasty Warriors.
Gameplay: Hack and slash. If you don't like Dynasty Warriors then this game is not for you. The combos consist of alternate presses of the X and Y buttons. It is pretty cool when you're slashing through hundreds of enemies at once, though. You also get two squads of soldiers that follow you around, but they basically don't do anything. oh sure, they'll attack enemies, but they don't really do any damage. They're more of a distraction than anything.
Graphics: The graphics look very good. It's certainly not the best looking game on the 360, but it's far from being the worse.
Sound: The war music in the game can really get you ready to fight.
Difficulty: Wow. This is the reason I gave this game a 7.5. Otherwise it would've gotten an 8.5. For the first character, the first 5 levels aren't really that hard. However, at level 6 the difficulty ramps up immensely. It certainly doesn't help that when you die, you restart the whole mission. I'm stuck at level 7 because I keep dying and I got really frustrated at the game.