I heard of ghost clients and they are annoying. However if someone is hacking and using a ghost client where the UI interface is hidden, there are still some tricks to look for to see if someone is hacking. In the video I did not see some of the usual characteristics of hacking. For instance the hit boxes where white and looked like normal game hit boxes. A good number of hacked clients use red hit boxes, With a line tracking distance. Then again some people disguise it well. I not positive but I don’t think he was hacking in that game, then again not my place to decide if someone is innocent or guilty or to make a judgement. I just stating my observations, hope they helped.