I have basically only played against bots. And then I've know discovered the diplomacy. But when i tried to become nutral or at peace with the ai, it just allways replies like this: "I'm not intrested in an allience". Am i doing something wrong? Or is the issue that I'm playing against ai?

The conical hulmet needs to be more accurate.  

I did it( the ai) based on several references.    

That's for own ships? What about enemy ships? Used to be you could see the (arrow) stats and know what's up, but that has been changed.