AT THE VERY LEAST WE NEED:
-Forced walk at max fatigue
-Shorter "hold breath" times when fatigued
-More punishing long term fatigue
No matter the fatigue state, weight borne should lower speed of:
-Changing stances
-Climbing into vehicles
-Increase speed of fatigue gained
-Increase weapons sway, slower speed of raising of weapon, slower reloads, slower weapons switches. SLOWER everything!
-LOWER RECOVERY of fatigue (currently identical across all weights carried. Carrying a backpack alone should be fatiguing.)
-WEIGHT should IMPOSE a penalty -minimum fatigue-. Once you start moving, your fatigue will not go below this level -without you dropping the weight!!!-. Even when prone, your weapon-sway will be reduced, but you will get up slower and your weapon sway standing will be increased again.