Not sure how we missed this news, but thanks to this post on GameFront word is out that modding support is coming to Call of Duty: Black Ops in May. The story broke after a twitter post by one of the Treyarch developers, was officially confirmed by the community manager. According to the same developer "pcdev" the reason why these tools are coming out half a year after the games release is:
pcdev wrote: There are some purely technical issues related to engine and internal tool enhancements that do not easily fit the mod tools paradigm. We have looked at it close enough to see that it is non-trivial and we will have to pick it up again post-launch.
Call of Duty is the biggest FPS franchise in the world netting over a billion in sales, and previous versions of the game such as Call of Duty 4 have had huge modding popularity. This is excellent news because the controversial previous version of the game Modern Warfare 2, famously ignored the PC community pleas of dedicated servers and modding support. Which occurred despite the fact that many of the new features found in that game, were ideas first explored by the CoD4 modding community.
So if you plan on making a Black Ops mod, submit it to ModDB today.