Easy headshots. I've been playing a lot of Rainbow Six so my aim is a lot better. I just snap to their head, dumpster them, and move on. I think having that quicker transition to ADS has given me the boost over people, a couple bullets of more accurate fire is all it takes and I'd rather not leave my shots to chance. I also use hover but I don't know if it helps, I just think it's cool.
Especially with the smg the time it takes to ads and align is easily two or three shots o the target from the hip imo