Well W/C = toliet if im not mistaken.
But this has nothing to do with it. Trust me, its nothing to do with the cheat pack because ALL OFP file checkers report in world chat, they can not do anything else, so you would have seen for yourlself if it detected any mod files etc.
No, this must be something else. Tell me, were the five people on the server from the same clan/two diffrent clans perhaps?