>The Richard B Russell was a old attack sub. it could not possibly launch a 130,000lb D5 missile.
Right. But think about this:
USS Richard B. Russell, Sturgeon class.
Sturgeon Class that does carry a nuke.
UUM-44 SUBROC:
The UUM-44 SUBROC (SUBmarine ROCket) was a type of submarine-launched rocket deployed by the United States Navy as an anti-submarine weapon. It carried a 250 kiloton thermonuclear warhead ''configured as a nuclear depth bomb''.
Reconfigured…
D5 is what they get in return. MOAB.