Audio problem: When Hal Moore is looking at the strong guy through the binoculars during training, the guy's mouth doesn't match what he is saying.
Audio problem: In the scene where Col. Moore calls in 'Broken Arrow' Joe Galloway and Col. Moore are both firing M16's yet, they both sound different.
Chosen answer: Smedley Butler and Daniel Daly. Both were awarded the medal of honor twice, and lived to tell about it. Both were also U.S. Marines. More info here at http://www.grunts.net/legends/butler.html and http://www.cmohs.org/recipients/double.htm.