Didn't take nearly as long as the S12, since I was dumb and got my OHK for it in core. Now all I have left is the M1216, but I won't unlock that for another couple of levels. Might as well work on the riot shield D:
Cool man the ksg looks better gold and diamond more than the 870. I diamonded my smgs and shottys before I prestiged. It just seemed easier that way plus I didnt care much for prestiging since the icons are so small and muddied. Now I am prestiging just to have something to work toward.