The admin staff will not ban anyone without proof of rule violations. If you have screenshots or video of someone breaking the rules on the 100 man we may be able to help. With that said, what we can do is keep that players name in mind and watch them when we are online.
Being part of ATS, Hospitaller or the Northern alliance has zero to do with the rules. Every player including players in the mentioned clans/alliances even the admin staff are expected to follow the rules and if they can't would find themselves in a timeout.