As some readers have notice, a handful of gamers are now playing the Beta. The Beta went online last night and only has one playable map called Operation Metro. This map so far is a Rush mode which is a scale down version of the Conquest mode from Battlefield on PC.
Those who brought Medal of Honor Limited Edition and Tier 1 have the chance to play the beta earlier than others. Those who didn't buy either version will have to wait until Thursday to have a go. Keep in mind though the beta closes on 10th of October.
You don't need to have the Medal of Honor disc to get access to the beta, however you will need the code they provided for you. Enter this into the system and off you go.