He hasn't 1 month here in gzs server and he knows better sawnoff than most of the players in gzs.
You know that GZS is not the only server where you can learn DM, right? And how do you know he is not playing on other servers? Are you checking every, at least, Hosted Tab server?
Anyway.. If stuntman agrees, there will be an admin doing Team Viewer check. But I doubt that