Why build the proposed battle group around one battleship and four heavy cruisers?
Short answerThe battleship combines standoff firepower, close-combat strength, and command facilities, while the cruisers provide additional ships able to fight in the battle line.
NotesThe existing 34-ship group has only one vessel suited to close combat, its heavy cruiser. A proposed battleship would combine a standoff ship's missile battery with the fighting strength and command facilities of multiple cruisers. Four heavy cruisers would give the group more ships able to enter the battle line and protect the formation. Keeping the support arrangement at the same overall scale would add close-combat power without discarding the Commonwealth's standardized group structure.