User blog comment:Damac1214/Black Ops II Zombies Reveal Released/@comment-32237267-20120927094841/@comment-64.58.204.206-20120928102419

Like Anon said up above, I bet that its not at night. Prob. A clouded out sun. Like the level Aftermath in CoD4! You could still see the sun and everything else, but a thick haze was over everything.