Having played with Scoped In extensively for the first time (thank you cloaked stat hat) I can say that without a doubt it gifts you headshots and markers witht he dragon in general. Sniping is way easier when you are gifted the shots.
I always had my suspisions because of how many noobs got lucky headshots on me but I assumed it was a game wide problem. It is but Scoped In makes it worse. But hey, at least it's an aimed kill.
After playing at very least 8000 matches and getting well over 100,000 kills I know when something is made easier by a booster. Hell, I probably know this game better than the developers at this point.