(adsbygoogle = window.adsbygoogle || []).push({}); Well I've been told minimum of 15k kills and 200+ K/D ratio

I have 174k kills and 328.9 KD ratio and still have the knife and skull? Anyone want to tell me what I actually need for the shotgun rank please?

i think its based on what round you get to aswell

I got to round 116 on solo, before that round 115, before that round 113 and 112 and about 5-10 other games rounds 90-110's on solo... I have had my knife rank since I hit 35k kills with something like a 160 KD ratio and I was told 200+ kd ratio for shotguns, so I set my goal as 300 kd ratio and I reached that today, well beat it by 28 and I still haven't got them...

its your average rounds survived. 35 or 40 not sure. most important is that you will not get the shotguns until you have 5 slashes. I did to like 8 names now. just try it. make a new name, play one game a day with this name and pass round 40 for 5 days. when your slashes go to 5 you will have shotguns.

Yeah I don't feel like paying for XBL on a new account I won't ever use just for a rank on Zombies lol

You don't need 5 slashes to upgrade ranks. I've seen a guy go from the knife rank to shotguns in a game with 4 slashes.