Few weeks ago EA officially announced Battlefield 4 beta. At the time of announcement the only way to have access to Battlefield 4 beta is to pre-order Medal of Honor: Warfighter Limited or Deluxe Edition.
Many Battlefield fans are now wondering whether Battlefield Premium subscriber will have access to Battlefield 4 beta or not. The official Battlefield Twitter account has replied to this query of fans.
“Premium members will not have access to the Beta for Battlefield 4, but there are certainly other ways to get it!”
So as of now pre-ordering Medal of Honor: Warfighter is the only way to ensure access to Battlefield 4 beta.