The next sequel in Halo series i.e. Halo III is in Beta stage and Bungie Studios invited registration for the Halo 3 beta program last month. More than 14,000 people registered in through recommended way i.e. registration through www.halo3.com, but those who could not afford the registration for the public beta need not feel low because Microsoft Game Studios has sorted out the problem with suggesting two new alternatives to get into multiplayer Beta.

1). Play a lot of Halo II.
2). Purchase 'Crackdown'.
In first option, Microsoft Game Studios suggests playing Halo 2 for at least 3 hours between Feb. 1st, 07 at 12:01 a.m. EST and Feb 3rd, 07, at 11:59 p.m. EST. What you require further is to be among the first 13,333 to register at http://www.halo3.com.
And, secondly purchase 'Crackdown when it arrives at store shelves. As the Halo 3 multiplayer beta is on hand, then just use your 'Crackdown' disc as a key to download Halo 3 and join in the beta.
Via: 2old2play