Indeed, it's usually not a cheating problem, but the desynchronising net code. This makes it look like they did something impossible, but for them it was plausible.
Just got killed by someone diving laterally and not looking in my direction. However, I'm pretty sure what they were actually doing was different, and probably they were looking at me the whole time. There is just a huge disconnect with what you see other players doing, and what they are actually doing.
The net code is just really bad... it's decades behind COD in that sense. That is just an area the Dev team are really talentless in, and their latest updates have just made it worse.