Oh that? That’s just my CUSV, thanks for asking
The Navy has been testing an armed 40-foot drone boat developed by Textron at Norfolk this month.
From Maritime Executive:
The Common Unmanned Surface Vehicle (CUSV), built by the defense conglomerate Textron, is a 40-foot remotely-operated launch with long endurance and range. CUSV was designed in the 2000s as a component of the Littoral Combat Ship (LCS) mine countermeasures “mission package.” It has large towing and payload capacities for minesweeping and mine neutralization systems, and it was designed to be modular and adaptable for a variety of other tasks.
The CUSV test during Solid Curtain aimed to evaluate the platform’s suitability for defending moored warships – in this case, the destroyer USS Arleigh Burke and the carrier USS John C. Stennis. The boat was fitted with a remotely-operated .50 caliber machine gun station with cameras, sensors and a data link to a control station on shore. During the exercise, it intercepted a suspect boat (a manned Navy launch) and hailed it, then fired simulated shots to “disable” it.