Oolite Bulletins

I'm pretty new to scripting AIs and I want to make a better AI for the missile. The missile chasing the target whilst doing unnecessary barrel rolls and so called "evasive maneuvers" is driving me crazy and it's unrealistic. How do I make simple and intelligent missiles that lead their targets and actually intercept the thing instead of chasing it? I've read the wiki and take a look at the missile AI file but I cant find the tumbling behavior.

Sorry I was just stupid should've set the accuracy to 10.

You can get funny results playing around with the missiles' pitch and roll.