I'm trying to add Weapon UAVs on ZeroHours' ADF-11F Raven, using the concepts on various builds by StarlightFX (ZGMF-X13A Providence), Thelegitpilot13 (Alicorn Class Submersible Aviation Cruiser), and typeZERO (DRAGOON System Concept).

When I said "seeker drones" at the title, I meant custom missiles with fuselage and gun parts attached to it, and it works by automatically locking on enemies and manually shooting them with the attached gun.

Unfortunately, whatever attempts I made result in:

a. The missile part of the mechanism wouldn't budge after firing.

b. They won't come together and the missile flies without the attached gun and fuselage.

c. The fuselage won't budge but the missile flew.

I don't know what mistakes I've done, but it's either:

a. Parts attachment is wrong.
b. Parts scaling is wrong.
c. I missed something.

Here's the link: http://www.simpleplanes.com/a/fRj7L7/ADF-11F-Raven-with-Weapon-UAV-WIP

Please kindly point out what I should've done instead.