Factual error: Throughout the mini-series, the First Recon Marines use AN/PAQ-4 laser sights, when in reality they used the AN/PEQ-2 laser. Another error is that they are using (according to them) AAA batteries for the sights, while both sights actually run on AA batteries.
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Combat Jack - S1-E4
Visible crew/equipment: Multiple times during the "Fixin' To Die" song, a reflector screen can be seen in the glasses of Ray. (00:37:30)