Ok to do this it requires you to have a USB keyboard but besides that it's as easy as pie

enjoy - mad
[ame="
https://www.youtube.com/watch?v=5XJA-u7hSr4"]YouTube- Call Of Duty MW2 Glitches: Buttons/Symbols In Custom Class Glitch[/ame]
PS3 TUTORIAL (Credit goes to UK ViiPeR for the video)
[ame="
https://www.youtube.com/watch?v=WNFvahhRARU"]YouTube- mw2 class button glitch tutorial(Ps3!)[/ame]
Written Tutorial -
1) First plug your USB keyboard into your xbox.
2) Go to dashboard and change the language to french.
3) Go to rename class on MW2.
4) To get the symbols HOLD Alt GR (The ALT that is on the right side of the space bar) and then the buttons that work for the symbols are the whole top row of numbers (from 1 to the + sign) and P, I & O letters work.
5) Press which ever buttons you want and then press START to save the buttons.
Rep + Thanks Please