I must apologise on going off a tangent, but since it's military forum+fallout power armour so I really need to get this off my chest, power armour in fallout are stupid as a concept all together, a dead end, worse than useless concept even if the technology for it exists(IMO).
Heavy power armour(bulky walking tank) will vastly decrease the survivability of an infantry man, an infantry's greatest defensive tool is to not getting seen, second greatest is not getting hit, only a distant third is his body armour(this applies to all combat arms of the military). Throwing the first two completely out the window for the third is pure sucide, it's like the F35 shedding its speed and stealth for an up armoured fuselage. Utter lunacy.
You will frequently see tank crew man bail and abandon their vehcle at the first hint of trouble on the modern battlefield. Anti-tank weapon are prolific and auto cannons even more so, armour could no longer have its ways with infantry like in the olden days.
It's funny how in the lore Power armour is the deciding factor to US victory, let's leave a side the fact the lore is basically another Wunderwaffe wins the war story. It's not even a wunderwaffe with a valid concept like ME262, V2 and Fritz X, it's the Maus, Nazi Germany pushed back the Allies.... by mass producing the Maus.....
While it's certainly iconic, but I can scarcely find a scifi military equipment concept that sounds less credible to me.