Friendly fire / kills, happens frequently in FSO on both sides, Allied & Axis, chalk it up as something that is going to happen and try to give a heads up when you are behind a friendly and closing in quick/faster than the friendly in front of you....make an honest effort to let them know where you are as well as what side you will be passing them by!
I did this exact thing last night for HP51, letting him know that I was coming in and what side I was going to pass him by, so he would be aware not to shoot me... really simple use of comms and SA, if you think about it...
One thing that all of us can count on.... Friendly fire/kills will continue to happen on both sides... it is up to each of us individually to try our best to not let it happen....
There really is no reason to ever bring it to the boards, mistakes happen and will continue to happen.... the best thing to do is to teach and guide players in the proper way of communicating and SA....
Hope this helps
TC