What new sensors would an orbital military force need if submariners supplied its personnel?
Short answerThe difficulties identified are obtaining sufficiently accurate targeting information at long range and keeping the sensor system working outside a planet's atmosphere.
NotesSubmariners' reliance on sensors and experience in three dimensions provide an analogy for an orbital force. Accurate targeting at long range would be a major requirement. The equipment would also have to survive its operating environment after leaving the atmosphere. The performance and survivability problems remain unresolved, without a new sensor technology being specified.