DOOM beta to be available on Xbox One, PS4, and PC only
As revealed back in February, pre-ordering Wolfenstein: The New Order will net access to the DOOM beta. At the time, not much was known about the incentive, but Bethesda has since updated the FAQ, revealing a few more details.
For instance, we learned that DOOM beta will only be available for Xbox One, PS4, and PC, and your access will correlate to your pre-ordered Wolfenstein: The New Order platform. This means if you purchase Wolfenstein for Xbox 360 or Xbox One, you'll recieve an invitation to the Xbox One DOOM beta. Likewise, if you purchased the PS3 or PS4 version, you'll get an invite to the PS4 DOOM beta. PC, of course, will be invited to the PC beta.
And in typical Microsoft fashion, the Xbox One beta will require an Xbox LIVE Gold membership. PSN Plus is not required for the PS4 beta.
Unfortunately, we still don't know when the DOOM beta will begin other than "a later, yet-to-be-announced date." You will, however, find the beta key code with your Wolfenstein: The New Order purchase so make sure you remember where you put it.