User blog comment:Angel of Anarchy/DICE releases video on new Battlelog features for BF4./@comment-2092722-20130727171252/@comment-5124635-20130728162938

I'm guessing full-auto 7.62 (G3, SCAR-H) will be Assualt-only, and semis will be all-kit. I could easily be wrong, but it would make sense, you don't want every player having a full-auto long-range battlerifle.