Ace Combat 6. While the levels are not that great during the game, the last level was amazing. Lots of snow (making it hard to see), dramatic music, hundreds of fighters from all sides duking it out, a giant ass cannon that's blowing shit up that you have to destroy(By having to freaking FLY into the damn cannon, TWICE, to destroy the cannon) or all is lost in the war. And to end it off your wingman for the entire game tries to take it on by himself after his family is killed in the war but ends up getting shot down, with you sitting there watching his final moments. (However, he did eject in time. If you watch the ending it states he was able to when the plane fell too low for the camera to see, but he can't fly anymore due to injuries)
Good stuff, man.