The nights are too bright in 0.63 stress test. The map is glowing of itself, when there is no moon and no stars at the sky.
If you keep the nights like this, light sources (like flashlights etc.) are totally useless. Because it's too easy to see and no one will use it.
You should remove them, if you let the nights like this. Maybe we could gain a few more fps without these items.
But I hope you'll make it a bit more realistic and make the map a little bit darker.
Best regards