Continuity mistake: They are in a minefield. The map shows it's between a bunch of islands or small landmasses. All the dialogues and maps reflect this, but the visuals show open sea.
The Last Ship (2014)
1 continuity mistake in Minefield
Starring: Adam Baldwin, Rhona Mitra, Eric Dane, Travis Van Winkle
Character mistake: The Captain yells to Tex to man the "Fifty cal" but Tex goes to a mounted M240 7.62mm weapon.