A PC mod toolkit for Call of Duty: Black Ops should release next month, according to this Treyarch developer (and retweeted by community manager Josh Olin.) Call of Duty: Modern Warfare 2 disappointed many when it did not release mod tools. Treyarch promised last year that Black Ops would bring them back.
Black Ops Mod Tools Should Arrive in May
Source: Kotaku (opens in a new tab)