I made this basic little mod that shows the durability of your shield in your hud.
I found the original script in teh_bandit github so credit to him. I just made a little modification so that it shows the "correct" icon in the respective map.
The shield icon in tranzit is a hitmarker because I cant seem to make the icon work.
To install simply put the file in %localappdata%\Plutonium\storage\t6\scripts\zm if there is no scripts folder, create it.
compiled and uncompiled version in the same .rar
Download
