So, there is discussion that due to how The Phantom title is worded, we know that while it is docked The Ghost can perform a primary weapon attack in it's special/aux arc. That is not in dispute, however then we get to the interesting part.
The second half of the card reads "and, at the end of the Combat phase, it may perform an additional attack with an equipped [turret upgrade]. If it performs this attack, it cannot attack this around again."
So which out of these scenarios is correct:
The Phantom is docked, and as a result The Ghost may fire with it's turret upgrade at the end of the combat phase.
The Phantom is NOT docked, however the card allows The Ghost to make an additional attack with its turret upgrade at the end of the combat phase.
Due to how it is written, you could go either way with the rules. Personally I think the latter sounds more in keeping with what we can see in the show.
I think we need an FAQ or at least a designer to step in and answer what the card was intended to do.