Naval personnel do NOT salute uncovered. When entering the base in a car, uncovered, Magnum returns the guard's salute.
As Agent Newton is lying on the ground having just been shot by Magnum, above his head and within reach is the M16 (AR15) he used to shoot Eric. Moments later, the gun is gone, with neither Magnum nor Newton having had the time, opportunity, or ability to move it.
Magnum has freed Laura and is now going to try and talk Eric in to surrendering. He leaves Laura and Newton with the Island Hoppers van and runs from one huge spool (#1) towards the barge and takes cover behind another huge spool (#2). He looks back to see Laura, Newton, and the van just where he left them behind the first spool (#1). As he moves from behind the spool (#2) and toward the barge the van is now up close to the spool (#2) he is using for cover, with Laura and Newton nowhere to be seen.
When Tom is trying to weasel out of paying TC the $50 for parts the camera crew is seen in Tom's sunglasses.
When Mac Reynolds types in Eric Tobin on the computer for Magnum, his fingers stay near the center of the keyboard. He couldn't have typed most of the letters in that name.