They do indeed, or at least such a thing exists. Last I heard it had a delay between the information being sent and being displayed, so was of limited use, but that was a year or two ago, so could be more effective now 
Donāt tell me you thought that being close to dying suddenly makes you a much better fighter?
Maybe youāre thinking of the HUD system that links an aimer on the soldierās weapon with a corresponding crosshair, because last time I checked itās pretty hard to accurately measure āhealthā and put it in simple format.
Plus I was being sarcastic. -_-
Sarcasm is usually funny.
I named my iPad Moses because it parts my red sea.
Thatās what usually happens āin the moviez!ā So maybe thatās where the idea comes from.
They do have technology that reports, or will have the capability of reporting: armor integrity, ammunition spent, location of enemies relative to your position, location of friendly units, temperature, environmental hazards, etc.
https://www.popsci.com/bown/2009/product/ears-gunshot-localization-system
As for health, well, thatās a relative definition 
I like the idea of hearing him pant now and then when heās wounded, but thatās about it, I donāt want the damage-/speed system to change if Iām low on health. It would be like the equalizer from Team Fortress 2.
lol i had so many of them say medic and when i go to heal them, i canāt because i see the equalizer on them.
Itās a stupid idea.
Less of an idea, more of a fail.
LET IT DIE! :ā( ā¦ 