Looks like lag to me. If you watch it slowly, a few things happen: 1st) the guy does not seem to be dead until after you take the hit, confirmed by both the kill feed and downed guardian trackers. 2nd) You can see his muzzle flash and the trajectory is lined up with his gun (at least as far as i can tell, you can get a good pause around 0:17 to see it. play it at .25 speed). 3rd) You were well behind a box when you die so even a skip round would have been a stretch since it would probably not lag on your end.