nocalora29 I feel kinda bad coming back with more but you asked for it!
I did a full test of GW's Mothership mod and found the following:
All Pilots have the correct templates!
The Bastard fighter has a slot for missiles but when I tried to equip it I got "This device cannot be installed in this socket"
The following "Other" Motherships have no interior template - the good ole "Scanning Process Aborted: Unknown Source" :
Stone Arrow, Portal Transport, Alien Dreadnaught, Alien Frigate, Chimera, Super Chimera, Phoenix, Angor Frigate.
I was unable to buy major caliber turrets - Option 13 Mothership Equipment. When I attempt to buy them I just get "[Wizzy] Make your selection..." No credit deduction, no inventory item. Subsequently, I was unable to test the Silver Arrow's 2 slots.
Hope this helps and thank you for the work you are doing to keep the game alive!