Agree on field options becoming limited in the first island chain although at 3000nm range I think the XQ-58 is well placed.
There needs to see some serious inventiveness when it comes to CCAs though. A couple of suggestions;
- Airship motherships such as this,
https://atlas-lta.com/atlant_cargo_airship/ The mid and large variants would potentially have enough payload to handle multiple XQ-58s and generate multiple strike missions. An automated docking and rearming system is conceivable and if the airship is also unmanned then the platform can stay on station for as long or as little time required, being refuelled by other airships.
- Submarine launched CCAs. Would love to see how a new UUV that could be a mothership for CCAs. Surface launched and can parachute back to the ocean surface, stay buoyant with its airbags and recover and rearm.
It becomes a targeting issue more than a range/payload issue, would need sufficient platforms, ie NGAD, down range for this to be a worthwhile investment?
I suggest you don't even need the doors, operating in a modern IADS likely has sufficient low frequency radars to detect a JASSM sized target, so just design a shell The intent with CCAs isn't current platform levels of stealth and in this context you're probably not even suggesting a CCA by the definition, just a long loitering missile with a unique warhead. If you want to give the missile its own radar and other sensors then you might as well go bigger into reusable territory.