I HAVE SEVERAL IDEAS FOR NEW WEAPONS
i know that these arn't gonna be in call of the dead, but
1: a boomerang that has an element 115 blade, to slice through zombies.
2: a lava gun , the lave sticks to zombies and melts them and then goes onto the floor and makes a puddle that kills more zombies.
3: a hypnotize gun that shoots a water balloon-like thing that explodes in a group of zombies and the chemical makes the zombies attack other zombies that havn't been hit by the splash (idea from bioshock)
i also think that you should be able to upgrade guns a second time in the PaP for 10,000 points
AND BRING BACK DOUBLE TAP!!!!