How the Hell.....
How the Hell does Casey go from being a Chief Petty Officer (E-7) in 'Under Seige' to a Liuetenant (O-3) in the sequel?
Granted, 'Mustangs' (What we in the US Navy refer to as an enlisted person who gets commissioned), can become an officer upon congressional approval. However in doing so, Casey would have had to await his appointment (which takes roughly six months), start his commission as an Ensign (O-1) then jump two more paygrades.....all in under three years...possibly less since he was at the time this film takes place, retired.
ABSURD!