Their server, their rules, they do whatever they want on and basically don't give a shit to what you can think about them. That's quite the same about the groupfighting server back in the past, when the 91st was hosting it, the difference is just that 91st was a really good regiment when the 15th is not.
So better just find another server, cause they will not unban you, and all that you will get by posting here is a mute.
Also to people thinking that by banning players with absolutly no reason, the server is less populated, it's not the case. At 1:00am, today, the server was at like 96 people, definately the most populated server on NW. That's why they don't give a shit to your request, and will never do as long as they will have so many people playing on their server.
Deal with it and move on, as I do, there are plenty of other servers you can still play on, make to the 15th Human Vs Bot, all the bad publicity you can, If you want to, but not on this thread.