Good guide. Thats some serious aiming skills right there, but with this guide and some (more than some) serious practice, I think anyone could do it. But even with this guide and all the help in the world I couldnt do that because I can get headshots like that with the M24, but there is no way I could do it with the accuracy of the M16 and tapping out the shots, when I could just use single shot on the K2. But thats some serious skills right there.