I figured this out by looking at other TTG_GawLey post and carzy post. I combined the two just by me guessing. This is my first tutorial and i hope u guys apreciate it.

What u need: Xero, Modio or any rehash and resign program, and i use xtaf but u can use modio too.

1. Drag your profile onto the desktop like usual.
2. Open up xero.
3. Open up Black ops GPD editor.
4. Click open and find your profile.
5. Scroll down to the bottom of the third column and find where it says your custom classes and prestigeclasses.
6. Type ^F^ after the first set of quotes.
7. Then type ^ again.
8. Then type the number for what color u want. (^0 is black, ^1 is reddish orange, ^2 is green, ^3 is yellow, ^4 is dark blue, ^5 is light blue, ^6 is purple, ^7 is white or default, ^8 is black.
9. Click save and exit out of it.
10. Load up modio or other rehash and resign program.
11. Open up your new modded profile (not the backup)
12. Rehash and Resign.

This is what mine looks like:

set customclass1 "^F^^1AWESOME"
set customclass2 "^F^^2COOLER"
set customclass3 "^F^^3SUPER"
set customclass4 "^F^^4AMAZING"
set customclass5 "^F^^5SUCK IT"
set prestigeclass1 "^F^^6CUSTOM 6"
set prestigeclass2 "^F^^7CUSTOM 7"
set prestigeclass3 "^F^^8CUSTOM 8"
set prestigeclass4 "CUSTOM 9"
set prestigeclass5 "CUSTOM 10"

Note if you get banned which is unlikely then it is not might fault.