User blog comment:N7/Battlefield 3 Beta is an older build of the game + Changes from Beta to Final game/@comment-3032061-20111009001309

I am almost positive most people are imagining the amount of "CoD" players in Battlefield. Besides, players evolve to how much XP you get. If DICE allows CoD players to get a large amount of XP by running around with an RPG, they will do so.