There is a zombies clan op for black ops 2.

I seriously need help.
We need 10,000 zombie kills, in like a day.
And if you are willing to help join the clan on elite:

You have to join before I enlist for it to count.
I'll be enlisting in 4 hours.

The op starts 2morrow 9 am (pac. time)
And you need to get kills (any mode, not easy difficulty)