No you don't, you carry what the mission requires, a week long, deep penetration mission during a zero degree winter will require well in excess of 150 pounds of gear per man.
You seem to have a little girls fantasy about the military, where you pick and choose your job, your missions, you fight with just a bandanna and a T-shirt with the sleeves torn off, and a trusty rifle, and you always start already at the place where you will be pulling the trigger from, or perhaps just an easy walk from it.
There is nothing in your experience that can equate to me what their experience has taught me.