The total darkness is insane with how regular it is, it's in no way realistic. Yes, on an overcast day it will be bloody dark. But with a clear sky I can definitely see by the light of the moon - quite clearly - and hell, even by the light of the stars by themselves. Not perfectly by any stretch but a hell of a lot better than a screen of solid black. Makes the game absolute hell for new players that can only get on to play at night.