As Requested by Baker
Quick rundown on the CIA submarine the USS Jimmy Carter
https://www.yahoo.com/news/uss-jimmy-carter-most-secret-143000732.html
>As the last of the Seawolf-class attack submarines, Jimmy Carter is unique. During her construction, the Pentagon added a special one-hundred-foot-long, 2,500-ton module called the Multi-Mission Platform. By the sailing branch’s own admission, this space can accommodate undersea drones, SEALs and much more.
More importantly, the hourglass-shaped section might allow specially trained teams to find and tap undersea communications lines and plant listening devices on the ocean floor. It’s more than likely that the submarine is one of the Pentagon’s most stealthy spies.
>The sailing branch eventually grouped together the USS Seawolf, Connecticut and Jimmy Carter as the core of Submarine Development Squadron Five. The unit’s spartan Web site states it is responsible for testing new undersea listening gear and remote-controlled submersibles, either tethered to a larger sub or able to operate on their own.
The group is also in charge developing new tactics for fighting in the Arctic, a region where submarines can easily hide from their opponents. Despite their current mission, each ship still has eight torpedo tubes, which can also fire Harpoon anti-ship and Tomahawk cruise missiles.
https://foxtrotalpha.jalopnik.com/the-navys-most-shadowy-spy-is-450-feet-long-named-aft-1699659302
>Other modifications to the Jimmy Carter include a set of precision thrusters, both fore and aft, that allow the sub to hold its position perfectly within space while conducting sensitive mechanical operations or when quietly trawling shallow waters. The Carter also has a large reconfigurable cargo bay, just off the MMP’s lockout chamber/ocean interface, for servicing vehicles and preparing for clandestine missions.
A modular command center can also be tailored to the specific mission at hand, with different configurations available for special operations, deep sea espionage, mine warfare, specialized sensor or unmanned systems deployment and just about any other mission you can think of.