[Question] Carrier Module Fighter Craft

Are these generated internaly or am I right to asume they reference the ShipBlueprintDefs.xml like any other "ship"?  I have seen Fighter Blueprints that are unbuildable:-

 
  <!-- Begin Blueprint -->
 
  <ShipBlueprint>
    <InternalName>AssaultFighterBlueprint</InternalName>
    <ShipHullType>Small</ShipHullType>
    <Role>Assault</Role>
        <ShipGroup>Fighter</ShipGroup>
    <CanBeBuilt>false</CanBeBuilt>
    <RequiredComponentType>BeamWeapon</RequiredComponentType>
    <RequiredComponentType>MissileWeapon</RequiredComponentType>
    <RequiredComponentType>KineticWeapon</RequiredComponentType>
        <ComponentType>InterstellarDrive</ComponentType>
    <ComponentType>BestDefense</ComponentType>
    <AllRequiredMustFit>true</AllRequiredMustFit>
  </ShipBlueprint>
 
  <!-- Begin Blueprint -->
 
  <ShipBlueprint>
    <InternalName>DroneFighterBlueprint</InternalName>
    <ShipHullType>Tiny</ShipHullType>
    <Role>Interceptor</Role>
        <ShipGroup>Fighter</ShipGroup>
    <CanBeBuilt>false</CanBeBuilt>
    <RequiredComponentType>BeamWeapon</RequiredComponentType>
    <RequiredComponentType>SublightDrive</RequiredComponentType>
    <ComponentType>BestDefense</ComponentType>
    <AllRequiredMustFit>true</AllRequiredMustFit>
  </ShipBlueprint>
 
  <!-- Begin Blueprint -->
 
  <ShipBlueprint>
    <InternalName>GuardianFighterBlueprint</InternalName>
    <ShipHullType>Tiny</ShipHullType>
    <Role>Guardian</Role>
        <ShipGroup>Fighter</ShipGroup>
    <CanBeBuilt>false</CanBeBuilt>
    <RequiredComponentType>KineticWeapon</RequiredComponentType>
    <ComponentType>KineticWeapon</ComponentType>
    <ComponentType>BestDefense</ComponentType>
    <AllRequiredMustFit>true</AllRequiredMustFit>
  </ShipBlueprint>
 

I asume these are for Carrier Ship Module and Starbase modules and the game generates them as and when needed?