Cheating

So I’m more curious than anything. I know guys over the last three years have cheated on raids. How do they do it? Is it like Old school Contra: left, right; up, down; B, A, B, A? Or some sorta rad energon shake? Anyway, pretty obvious when unduped 3* Primals, or non healing non purifying bots cruise down paths lined w 5*s and maxed HA’s.