TeamViewer - the All-In-One Solution for
Remote Access and Support over the Internet
TeamViewer connects to any PC or server around the world within a few seconds. You can remote control your partner's PC as if you were sitting right in front of it. Find.
Clan leaders use Teamviewer to get in to your computer and try to find traces of hacks. If they dont find hacks means you are legit and they will accept you in the clan.
That's the use that Combat Arms users gives to TeamViewer