Good idea
but... :-\ I think it's a bit hard, especially if you use it all the time... if you have BAS choppers and pilots, you would have probably seen their Visors and NVG goggles.
I mean Utilizing system: "Lower Visor" / "Lower NVG".
You can't use them both the same (in the truth you can...BUG)
And there one important thing to take care of: Moving system.
If you're moving, everything around you seemes to be moving too, even trees or bushes for example... so the Target System would show the as targets !
Thera are two possibilities: enemies and other soldiers (even your allies) are moving too, following a different road and
TARGET ACQUIRING SYSTEM recognizes only different-moving targets so trees are not shown as targets,
OR you have to stop yourself before activating your special HUD, becoming an easy target for snipers...
Ok, I've written something strange and hard...
but this is the ptoblem you have to solve in order to solve Tatrgeting System...