Posted on June 28, 2011, CJ Miozzi Treyarch Quietly Launches Black Ops Mod Tools
For the time being, the tools are only available for download through Steam and on the PC platform. In order to install the Mod Tools, you’ll need three things: an account on Steam, the Steam platform installed on your computer, and, of course, Black Ops installed.
The Mod Tools can then be found in Steam under Library > Tools. The tools will be installed in your Call of Duty: Black Ops game directory, and mods are filed under — surprise, surprise — the mods folder in the root directory, where they can be deleted.