None of which are unique capabilities, and the espionage they can conduct is extremely limited. Three feet above the wave tops isn't exactly the preferred placement for cameras or antennas, effective horizon is about 6 miles.
Just adds extra versatility to the region of battle. Also the Ohio Class Guided Missile Submarines, can carry more Tomahawks than any other ship in the fleet. Submarines do well at anything they do. I won’t discuss the espionage any further, because there are thing submarines can do that satellites and aerial photos cannot capture. However, what submarines can do better than anyone else is hunt other submarines.