Is Rigging formally illegal?

Ectar: If you have evidence of players rigging matches by communicating across opposite teams in random battles, Clan Wars, Tank Companies or Strongholds, please submit a ticket with your evidence to our support team where it will be investigated. Each case is looked at on an individual basis.   If you've done this already and you're not satisfied with the response, shoot me a PM and I'll get things checked out.  Please note I'm not a backdoor to our support team but I do want to make sure each claim by a player is a legit one and in turn has been handled accordingly.