Designing a modern uncrewed sloop

How would you design a modern sloop of war?

Build an uncrewed 2,000-ton modular ship with a 76 mm gun, missile options, limited maintenance accommodation, and strong redundancy.

The proposed sloop uses a reliable ocean-going hull of about 2,000 tons and operates without a permanent crew. An OTO Melara 76 mm gun forward and a Phalanx aft provide fixed weapons, while StanFlex modules or launch cells around the ship carry interchangeable missile systems. A touch-and-go flight deck lets helicopters deliver maintainers without requiring a hangar, refueling team, or embarked aviation department. Hammock spaces, one toilet, and one shower support temporary repair visits. If one diesel engine can power the ship's systems, three would be installed so that a failure leaves a working engine and a spare. Separate fuel tanks allow a contaminated supply and its affected engine to be isolated. The 76 mm gun is intended to defeat attempted boarding at a distance while sensors establish the approaching craft's identity by day or night. That identification is part of the proposed rationale for making an uncrewed vessel more heavily armed than an ordinary patrol ship.