Boeyy Lee I believe is use for carrying good stuff with it like an example the base is far away from it and it on can drive on water so we use this to carry it to the base (say thank you now or die)
The UHAC Amphibious is the vehicle you use when your girlfriend lives across the pond and you have to take her to the prom. Btw, the music is overkill. The sound of the vehicle engines would be more appropriate.