This guy is clearly using an aimbot and has been banned several times the last couple of weeks/months on the same server. For some reason this cheat is still not detected by VAC since the servers I play on are always VAC secured. I know this hack has been around for years, but in the past it wasn't really an issue because banning someone 's Steam ID would take care of it. Unfortunately, players can now create a new account because you have made this game F2P.
I really hope you do not ignore this post and address the issue. People as myself who have paid for this game are now being bugged every weekend by (probably) one single person who thinks he is untouchable. There is usually an admin around to take care of him on the servers I play, but it only seems to take about 10 minutes or less for this person to create a completely new account and return.
PS: as mentioned in the Youtube video, do not pay attention to his name because he always uses the name of someone present on the server.