The one and only modloader for Call of Duty: Black Ops, done (video on YT a bit later) only 30 minutes after the release of the game.
Also included in whitelion's BOLoader on this board.
Download: http://www.itsmods.com/forum/Thread-ItsModsloader.html
This is for the LEGIT version of the game, if you use the * version, I suggest using the BOLoader on this board which contains a modified version of this modloader.