Retained 15-inch guns make Courageous a raider threat

How would surviving gun-armed Courageous-class ships affect German raider deployments?

Their speed and four 15-inch guns would make them dangerous opponents for Deutschland-class raiders.

The counterfactual keeps the ships as gun-armed fast capital units rather than convoy carriers. Four 15-inch guns give them a weapon that can overmatch a Deutschland-class raider. Their speed would help them reach distant patrol areas and force a raider to avoid action. Even with limited protection, they would not be an easy opponent for a ship armed only with 11-inch guns.