604 Marksman Shot (X4 ACOG)

HOLY SHIT? DID I JUST HIT THAT!? Title says it all. I was running along of the side of a mountain on Kharg Island when I decided to scope in and take a random shot at the enemy base and I get a 604 Marksman shot with a x4 Acog Scope. P.S. (THIS IS AN OLD CLIP, SO MY NAME IS DIFFERENT)