Are you blind
Look what he wrote after picture
Exactly....he hacked it....installing a program, and spawning a minigun with 2000 ammo. If he took it from like /mg6, then /disarm + /warn would ne nessessory.
dont ban them directly robert as you have the cmd /disarm do it and warn them
after that if they are doing it again warn them then if again warn them then they will
be kicked if he comes again do /ircpm most probably there will be some higher level admins
online in irc 
But what you said before VipeR just shows how much of a experienced admin you really are. Robert is experienced and knows what is needed.