(adsbygoogle = window.adsbygoogle || []).push({}); Okay the other day I got into a challenge lobby and it deleted my hacked clan tag. If I copy my game save and fix my clan tag will it mess up my colored classes? Corrupt my game save?

No!
It is perfectly safe. Anything online such as emblems/titles are the same as long as you dont have to pretige during the process of modding the clan tag.

No, the thing I am concerned about is the class names, they're are colored. Are those stored online, on COD4 they weren't.

Edit:

Well I did it anyways and nothing was changed. Thanks for the help.