Factual error: On the door of the Captain's stateroom is a plaque with Gold Submarine Dolphins. A submarine qualified line officer, all of whom are nuclear propulsion qualified, would never be stationed as a CO (or anything else) on a non-nuclear surface combatant. (00:40:00)
Factual error: It is established that DDG 151, while in Arctic waters, is in emcon, or emissions control, yet their surface search radar is operating.