Still making these interviews even Post release of your game/DLC, says to the dedication that you are to the overall project, not only that... But this effort, that of the vets an yourself to bring the community these interviews.... Says something, for sure. These interviews are worthy of making a documentary or archiving it. for future generations.
First they were often quite small in size. Second they were maybe 22-24 years old. Third I guess they hydrated well before each mission Fourth triple canopy jungle in Laos for example was actually quite cool, and sometimes really cold. Fifth they moved maybe 200 yards in an hour. Sixth they would refill their two canteens in streams as they went, often planning their area recon by where the "blue lines" were I imagine once they got into it with the NVA thirst would have kicked in hard.