The whole video is confusing. If the hack was truly active, why would he drone in certain areas that no one was around? Look at the beginning, the hack shows the nameplates, class icon, yet he purposefully avoids it, and actually acts like he doesn't know where anything is at. Then in game, he does the same thing.
My opinion only: This is a recording, and the "hack" is applied after the fact on the recording to make it appear like it is live. Basically, what could be done with CoD. You recorded gameplay, then you could apply a hack to the recording to break down.