Black Ops 2 does have a FOV slider goes from 65 to 90.
If you want to change to more you require a third party software where you can get banned by using it. But feel free to just google it and try some tools out. I found that one (I have no idea if it's outdated):
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.