Like the Admin stated, there are going to be times that we are not online to enforce the rules or even though we are online, we are not going to see every violation. When I see someone typing a message about a violation, I look to see if I remember that name and have I played with them before trying to decide whether I beleive them right off the bat or not. Some just call foul when they do not get their way and there are some that I trust what they say and I will either kick/ban based on what they tell me.
If i understand what you wrote, you were on the china side and the airfield was getting raped and artied??? that is of course allowed at all times whether the US has a flag or not.
If you wan to fly, then you will just have to resign as commander, payback is not allowed here, if someone Tk's you or something against the rules, violating them for some payback will get you both kicked or banned.
I guess since there no admin on when this was going on that the auto admin must have done this but I think that it should have also warned you before it banned you. I am not real sure about how the auto admin works so I can not say for sure but I am sure that someone else can shed some light on this.