Couple of problems

Regarding the foot problems from walking through the water, I'm not sure how long it takes for jungle rot, or a similar malady, to set in, but it seems like a valid question.

Regarding the food, water, rest issue, they are shown eating canned food, I believe they're referred to as c-rations, which seems appropriate for the time period. Obviously not a home-cooked meal, but the military provided them to soldiers to eat during combat situations, so I assume they provided adequate calories and nutritional requirements for a soldier in the battlefield. Before they started on their trek, the commanding officer told them to fill their canteens. When they captured the Cajun, the guy running the show at that point advised them to fill their canteens, so they had some water. As far as rest, it seemed like they took turns keeping watch at night, so I'm sure they got some sleep. It probably wasn't a lot, but enough to keep them going. I remember in high school a teacher saying that in the army they would expect you to get by on 2 hours of sleep a day.





"My girlfriend sucked 37 d*cks!"
"In a row?"

"I don't think you can slosh around in a swamp for days like that without having some very serious foot problems - aka "jungle rot"!"

The film took place over approximately two days and nights in cold weather. I doubt "jungle rot" was an issue - particularly not for the ones who died.

"Never shows them drying out their feet, shoes, and socks!! Your footwear would become useless in short order under those conditions unless taken care of - remember what lieutenant Dan told Forest and Bubba!"

Army footwear is probably much more resilient than normal civilian footwear. Just look at the trench warfare of WWI. It wore out, but not after two days and nights.

"IOW, they would be disabled and unable to walk any further in short order."

As indeed was the case for most of the patrol. However, this was not a minute-by-minute account - therefore it is entirely possible that they took rest breaks as and when they needed them. We just didn't see all of them.

"Also, without good food, water and rest, they would all be so exhausted they wouldn't have the energy to keep going or arguing with each other."

They were on the run for their lives from a largely unseen enemy. You'd be surprised what you can accomplish when you're scared out of your wits. History is replete with examples of superhuman efforts for the sake of survival.

ant-mac

Just because they didn't show it doesn't mean it didn't happen. They weren't shown going to the bathroom either, but we can infer / pretend that they did.