A rumour is beginning to spread around the internet suggesting that there will be two different Halo 3 Betas.
If the rumour turns out to be right, the first session of the Halo 3 multiplayer Beta test will only be for competition winners and will commence on March 21, just days before the launch of PS3 in Europe.
Those that bought Crackdown, which includes an invitation to the beta test, will have to wait a little longer, as the rumour on The Above Domain says that a second session for those gamers will kick-off in May.
Microsoft and Bungie have yet to state when the Beta will officially launch. The date is currently set at "late spring".