Thank you MultiplyByZer0. I found out which part of my movement was weak.
I will probably solve the fast targeting methods problem with initial predictors. It is hard to learn how CT/LT guns fire since they use velocity/heading/heading change which I don't use.
I don't think that Gun needs more data. There is already tons of data. I generally use a weighted crowd system which gives pretty good results both in TCAS and TCRM. I don't think about the gun too much right now.