You may have read my totally wrong prediction that the Wunderwaffe DG-2 would be a night vision gun. In fact the Wunderwaffe DG-2 is a lightning gun that shoots electricity and is only available on the Zombies map. I believe the Wunderwaffe DG-2 is only available for the Japanese Zombies in Map Pack 2 which was released today.

It reminds me of the BFG 9000 from Doom.