Corrected entry: Amber, from a military background, goes around hollering "Semper Fi". But according to her bio, she pulled a 4.0 at West Point. A combat soldier would never utter "Semper Fi", particularly to civilians, and a marine would have gone to Annapolis.
Corrected entry: When Nina steps on a nail and Jake asks for her wristband, she puts the red one over her scars on her wrist twice.
Correction: She does not put it on twice. She slips it over her hand, then puts it over her scars.
Corrected entry: Did Amber actually think cutting the rope to get Jonesy down wouldn't seriously injure him, if not kill him, from being dropped on his head?
Correction: Could land on his back, he's not restricted in his movement in his upper torso or waist while dangling meaning he could change his position before falling. Might get minor to major injured from fall damage but better alternative than eaten by cannibals.
Even landing on your back from that height you would be seriously hurt.
Correction: "Semper fi" is a common enough phrase among military types that it's meaning is known. A friend in the Air Force says Semper Fi to her friends in the Marines as an honorific.