All good, glad to see you progress my man, I use weld plugins too, they’re a life saver 
Is there any way you can clip the plane twitching? There are many probabilities of why this can be happening. Like the plane parts having too much mass compared to other parts, like you said the turret welding can be off or something. Too many things to consider here, I’d like to see it in action if you don’t mind. 
It already worked. 
I fixed it.
Thanks so much for your help.
What was wrong:
The turret was welded to the plane, so when I changed the CFrame, what happened was the whole plane shook.
Yes, I can send a video.
Nice going, I hope to see how the game ends up in the future, looks pretty sick already, I like the modeling
By the way, do you know how to make a prop spin?
The link:
It’s private though, cuz I don’t want randoms stealing my idea while im still working on it.