Personally think the stamina levels are fine, the issue is that during a sprint you lose speed as stamina drops, this should be less pronounced so you can cover short distances quickly to close gaps or reposition,
#Improving the endurance of soldiers
stable kite
analog stone
Personally think the stamina levels are fine, the issue is that during a sprint ...
In my opinion, you can grab stamina to run about 150-200 meters
primal rapids
The soldiers in game can run a literally unlimited distance.
What they can't do is move at the maximum sprint speed for more than ~100 meters.
A full out sprint while actually carrying stuff is pretty out there in terms of performance already.