User blog comment:Bovell/Battlefield 3's 12 minute "Fault Line" trailer released./@comment-1427137-20110416204936/@comment-1990578-20110419155907

That's what I'm thinking, SSD. I've looked at images of the DShK, NSV, Kord, and PK, and all I've come up with is that it's either a PKT with an extended barrel or a Kord with an extended receiver (as HP reminded me of the word - thanks BTW :) ). But my best guess would be a PKT.