If you want to edit your Black Ops GPD file or take a look at the one posted here on TTG you can download and use this free program.
To use it just copy your xbl profile to your computer (u must know how to do that)
then open your profile with the Black ops program and you can edit and save your gpd settings. Have fun, be sure to share your files.
Note. If you want to edit a gpd from TTG or another place you have downloaded it. You must first inject the gpd into your profile via modio or any other program that can inject/replace a gpd. you can't view the gpd directly. It must be injected first into your profile, then load your profile into the Black ops editor.
Look on google for help with coding the settings. It seems like this has been done before with COD 4 and possibly other versions.