Microsoft Game Studios and Bungie Studios announced that multiplayer beta of Halo 3 will debut worldwide via Xbox LIVE on May 16 at 5 a.m. PDT and it will run until June 6 at 11:59 p.m. PDT.

 
If you want to try the beta version of this MultiPlayer you should have either register trough the Rule of Three promotion or simply purchase a copy of Crackdown, to go with your Xbox Live Gold account and you are ready to rock and roll.

The game final is expected to be out in Fall 2007. For more details on the press release or for the trailer visit Gamershell.com