Half moon, makes night playable, but full moon created a really nice atmosphere. I know use of gamma correction is a concern, but pitch black is a game breaker. Perhaps the Moonphase could be tied to the gamma level in some way.
The flash light does help, but if a zombie is alerted, even an armed player is helpless. As taking out any weapon puts the flashlight away. And sprinting puts the flashlight aside.
Out of curiosity, is there a legitimate use for gamma correction in current gen computers and monitors? I'd rather have a locked gamma of 25% and a full moon, than an unplayable night.