The Flash-perk :MW2

Terminal : I went up past the escalators and the island and I'm at the tables just before you round the corner where it seems the enemy always runs to. The beams against the walls are large and when I turn back I see someone running towards me. I start firing (and of course miss repeatedly) and this guy is now on the other side of the column. Before I can say , "Die For Pork!", this guy goes lightspeed around the column and knifes me! Think of an old movie reel and that's what this dude looked like. I mean we all complain about the shooting-the-guy-in-the-face-20-times-and-he-didn't-die scenario, but is "Barry Allan"  perk something you get at level 71?