The key feature of the Weapon for FSX is TO WORK WITH ANY FSX AIRCRAFT/ROTORCRAFT. The Weapon does not care if it's a hornet or a cessna. This is why the Weapon has it's own radar and all required systems built-in as well.

How deep the Weapon integrates into to the bearer upon installation, described in all details in the Flight manual. What else third-party developers or users can do, described in SDK.