From everything I could take out of the conversation in the chat and talking with Kaze it seems to me like the BHG gunboats were shooting you alone, till you attacked Kaze. I have to reject the accusation of unfair play in that case. The BHG indies are doing their own thing and we have no means to do anything about them. If you then decide to open fire on another, not partaking party it is to be expected that they defend themselves.
I would also appreciate if you had just waited a few minutes till I was able to react. Having a conversation with someone directly involved doesnt seem like a very viable way of solving such matters, even if they are in the HC of said faction. I would advice to solve the personal issues between the two of you that are very apparently playing a role in this whole story...