I was accused of hacking too because of drop shooting. My problem is that I always accidently push down on the right controller. When I first started playing, about 2 weeks ago, I had a problem always knifing the air when I was trying to aim at the enemy. This got me killed every time. Then I figured out how to change the buttons but now I drop when I aim. But at least this way I can still shoot and sometimes use it as an advantage when up against an enemy. I would prefer not to keep accidently hitting the drop when aiming but its better than knifing the air.
The problem I have found with this game is anytime you kill someone, they accuse you of cheating/hacking.