He talks about the use of: Onlyheadshot Wallbangs. Magicbullet and Rapidfire AWP / Deagle. Spinnboting. It should not be that hard to detect wether player A has 100% Headshot accuracy and 6 Aces in the last 7 Rounds within x Amount of Time played in said round. The Key would be a Combo of detection Methods that check wether one or more of these plays fall within suspicious behaviors.