This armor is very dissapointing even for a unique. At the very least it should have extra damage threshold against bullets, and shotgun shells like the protectorate marine armor.
Another idea would be to add targeting aid chips that can be found around the black sea they could provide a buff to certain weapon attacks when installed in the armor.
My last idea would be ungrading the armor itself by taking it to certain faction members for a different upgrade depending on who you take it to. Such as Aegis adding a tac vest to the armor, or the Grim Jetters making the armor a lot better when on jet ski.