>Ghana tier
Not really, that shit actually works they field tested the passive ones in syria and they were happy enough with it that they put in an order for all the sappers, then it will mortars, HMG ATGM, and AGL crews.
The problem is the same as in the US: battery.
The Russian requirement is 48h on a battery charge and most of the existing can barely do 20h.
Passive is a decent solution, it's cheap, it's rated for an extra 30kg, especially for Russia that has less problem with overheating and still like it's infantry with heavy weapons teams.
It means one guy can carry a Kord and his buddy the ammo, your LMGs are now HMGs. That's not insignificant.