I’d like to suggest that Flag Cruisers, Command Ships, and Command Destroyers be allowed to carry regular Cynosural Field Generators.
They’re generally expensive ships, and storywise they’re command ships. As command ships, they would normally be piloted by commanders, fleet leaders, etc. And should be able to call in capital ships to their positions.
Also, as an aside, I think it’d be cool to have command battleships.