How does it work, do we get a "CD-KEY" to type in or just plug and play with the game?

Im guessing it comes with a code.

there was a screen shot somewhere that showed it. all it is, is just a download. you just go to the downloadable content and halo 3 beta is one of the choices. but that screen shot has disapeared...and i dont know where to.

here's the pic.
i guess they do it through the key stored on the disc....
i hope not off course

From what I read you do have to have the disc the day the beta comes out to get it... otherwise people would be trading them in... they want you to keep the game... and actually play it not just get it for a code and trade it the next day...

http://babelfish.altavista.com/babelfish/t...-beta-teaser%2f

That link explains it all, basically you NEED to have the disc in the xbox to play the Halo 3 beta. What i want to know is if we use a "backup" version of the game crackdown, will they have ways of figuring out if the xbox is modified???