Hey guys, I'm new around here. I was wondering if anybody would be able to help me and my friend with Black Ops 2 zombies. We made stupid mistakes early on in the game, and even though we are pretty good at zombies now, we are stuck in certain ranks. I'm just a skull, and he has a knife. I know it'd be easier just to have our ranks modded to shotguns, but I'd prefer to earn my rank legitimately. Starting over couldn't hurt.

Thanks in advance!