Marine artillery sinking a cruiser at Guadalcanal

What if Marines used four 6-inch batteries to sink a Japanese cruiser at Guadalcanal?

Japan would lose another cruiser, while the Marine unit would probably become famous and inspire a film.

The additional cruiser loss is the direct military consequence envisaged, with little wider change to the war. The unit would probably become well remembered and attract a popular film account. Any disobedience of orders could become part of that hero story. A joking extension imagines a superior officer being unfairly blamed in the retelling. These are speculative consequences of the scenario.