Add Typhoon Submarine

Would like to see Typhoon Nuclear Submarine as a special navy military unit for America. Anybody else?

 

Maybe for Russia as that is a Soviet Union era submarine.

 

Nuclear Subs pretty much covers all of those variants. The problem is their lack of uses; they should be able to ignore borders but at a chance of damaging relations if discovered, they should be able to able to perform espionage missions, deploy listening buoys to deter sneak attacks etc.

 

In previous Civ versions subs could travel under the ice and now they can't, it was a useful short cut when other shipping has to travel around landmasses.
If there's a sub in the area spies should have a 100% chance of escape.
Standard subs should be invisible to everything with a 50% chance of detection from other standard subs and a 100% chance of detection from nuclear subs and sub hunting ships. Nuclear subs should be invisible to everything with a 50% chance of detection from other nuclear subs and a submarine hunting ship.