There's nuts, there's crazy, and there's five million people playing Halo 2 in the game's 2.5 years on the planet. Insanity! That's more people than the entire state of Alabama. Granted, Halo 2 is more fun than anything in Alabama, but still! (Oh, relax, 'bamans...it's just a joke. Or...is it?)
For the specificity-minded members of the audience (you know who you are), the number refers to the number of unique Live accounts that have played Halo 2 online, not including guests.
Halo 2 hits 5 million players! [Bungie]
