Night vision goggles for one eye only?
I have covered this before, the problem is a bit complicated but, for a soldier duel eye helmet mounted systems are okay for navigation but useless for shooting, fair in other tasks. Unless you mount a laser sight you can’t get a good lineup on what you are trying to shoot at. This holds true for monocular and binocular configurations.
It’s impossible to get a good weld into the iron sights, difficult for red dots or hologram. This results in laser sights being needed but like tracers those work both ways and can be with equivalent night vision used to target where the shooter is.
A weapon mounted tube it good for shooting but not so good for navigating and terrible for anything else as your night vision only see what you are pointing your gun at. It doesn’t need a laser making it better suited to combat vs a foe with night vision.
a combination of monocle style night vision tube and rifle scope with some training Is at this point the best all rounder. You can navigate, perform tasks and shoot. No need for a laser sight. Some top of the line models will even pair up generating a FPS style hud telling you where your rifle is pointed.