I mainly do night raids, and I'd say only 15% of PMCs i kill at night are actually wearing NVGs. I see this come up all the time in the sub, people complaining that they can't see, or wondering how in TF others are seeing at night. There are many solutions to this, including NVDIA control panel settings, in game post FX, but the least intrusive and best way I've found to see at night (or dark places like interchange) is through Windows "Calibrate Display Color"
1.Type "Gamma" into your start bar.
Open "Calibrate Display Color".
Push "next" 3 times until you get to a slider.
Crank the slider up to 80-90% then tab back into tarkov (don't go further into the menu).
Leave it open in the background to make changes on the fly as needed. The window must remain on the same monitor you are gaming on. When done with Tarkov, simply close that window, and monitor will revert back to normal. This works for most monitors, but not all. For some people this will only "wash out" the picture, but it has worked for 80% of my friends. This will work on every map except factory- It's the only true dark map at night.
Hope this helps, see you in the shadows.