I vote up, some people do make a good point about people generally sleep at night rather than wander around however in a zombie survival situation I can see a need to sneak into town for supplies! The darkness at night seems to be at a good level atm (maybe thats just my system), you can see as much as in real life if you'd been without light for an hour or so. I do agree that your night vision should be ruined by a flashlight - IE your virtually blinded if a player suddenly shines a torch in your eyes or your night vision is lessened if you look at the moon or a camp fire and takes a while to come back to full.