Except that the "sprint" does not make you run as fast as you can and WWII soldier carried NOTHING compared to modern gear. I'm not the most fit guy by any stretch of the imagination but even I could run a good deal with ~9 kg combat vest, 25 kg bullet proof vest, ~5 kg rifle, helmet + all the other crap.
What kind of body armour have you been issued? 25kg? Are they filled with solid lead plates?
The ones we got issued weren´t heavier than 15kg and they were already some years old.
Anyway, after playing some 2.45 today I´ve got very mixed feelings about the removal of stamina. While it is true that back in WW2 soldiers didn´t carry as much as today, they still had to carry a good ammount of equipment that had a certain weight.
Constantly running around, jogging hills up and down without some sort of penalty feels therefore kinda odd to me.
Btw, I´ve experienced quite a good amount of dolphin divers today (running, jumping on the ground and instantly getting iron sights up and shooting enemies). Wasn´t there a penalty in older versions? Has it been removed or is my brain just playing tricks with me?