The new perk was leaked by a fired IGN employee who was seeking revenge, along with a whole crapload of other stuff. The perk is called "Three Gun Tequila" and it allows you have 3 guns. What you do is buy the perk, the go to the box, or the wall and buy a gun, now you have three guns to use! When you go down, you lose the perk and the gun you were holding in your hand when you went down, if you re-buy the perk, you get your gun that you lost back. It will cost 3000 points, like Speed Cola.
The Wave Gun can take out whole waves of zombies (like the ThunderGun and 31-79 JGb215) and then you can split it and make it dual wield by pressing left on the D-Pad. The dual wield version is called the "voltage rays" and electrifies zombies like the WunderWaffe DG-2. (The normal version makes the explode)
The QED, when thrown, creates a large, dome-shaped force field around it which zombies are seemingly magnetically pulled into, and everything you do to one zombie in the force field happens to all the others in it. For example, if you shoot one zombie, all the others will have a bullet hole in them as well. In the Intel, Treyarch said that along with blessing your battle, the Quantam Entanglement Device can also curse it...
The Phasing Zombie, similar to the Napalm Zombie and the Shrieker Zombie from Shangri-La, these zombies are fairly rare. But when they do appear, you're in trouble. They appear out of thin air, and you can see them for a moment, but then they become invisible. They don't appear again until they attack or they are shot at. However, if you pay close attention when they're invisible, you can see a kind of distortion where they are. This is hard to see when there are zombies all around you.
You cannot leave the base for more than fifteen seconds seconds if you don't buy a space suit, which can be bought in multiple locations around the map for 1,000 points. When you die, you lose yours.
The PPSh-41 is back, with a round drum mag!
The PaP Machine is gotten to by using a large teleporter. To turn it on, you must activate ten different switches scattered around the map. Once you do that, the teleporter turns on for thirty seconds. If you can make it there and teleport, you will end up in Area 51. Here there is a fairly wide open area with the Pack-A-Punch machine in the center. After a minute, you will be teleported back to the moon.
Hope this info is interesting to you guys, the info was from a fired IGN employee, he posted it here: http://pastebin.com/AwsafBmk