A modern Tillman would be an arsenal ship

What would a modern version of a Tillman battleship look like?

A supertanker-sized arsenal ship loaded with vertical-launch cells.

The super-battleship idea translates into missile-era terms through magazine capacity rather than larger guns and heavier armour. The result would be an arsenal ship with the volume of an oil supertanker and an enormous battery of VLS tubes. Its defining characteristic would be magazine capacity, rather than the balanced mix of sensors, protection, and aviation found in a conventional surface combatant. The answer is a quick way to see how the meaning of concentrated naval firepower changes across technological eras.