User blog comment:Awyman13/Battlefield 4 Second Assault Teaser/@comment-5394014-20131107135159/@comment-10993019-20131109203021

The U-100 is just in there for the same reason half the other guns are in there. DICE thought it was cool so they put it in. It's not used by the PLA or the USMC nor are they pretending it is.