I would have given it a 10, but 10 is perfect and this game isn't perfect. But with it's slight flaws the game is still amazing. This game's story is very gripping and draws you in. Few games can do this. I like RPGs and shooters, and this game really appealed to me. I guarantee it will appeal to the die hard RPG fans and the shooter fans.
The acting is VERY good. When you play this game you feel like you are watching a movie, but you are directly involved. The mystery, the thrill feel is all there.
Even when you are not in action, but talking and interacting with people it's very interesting and compels you to continue onward with the story.
The game is excellent after you've finished it, and almost seems more fun the second time around. You get to maintain your level and experience after you finish the game.
Just a fun fun fun game overall. My favorite game of the Xbox 360 thus far.