Hi there i am going to be releasing the long awaited tutorial on how to host CoD4 online without a JTAG but with the good old GPD's.
I have done this more than 20 times and each time it still works.
I beleive that IW have given up on patching CoD4 glitches and mods its mainly microsoft preventing breaches in security in all games.


ANYWAY:


What you will need:
2 Xbox's
2 CoD4's
Usb/transfer Cable
Internet Cable

Tutorial:

Ok, on one of your xbox's clear the system cache.
Then after that extract your profile off that xbox and open it in modio.
Then once its in modio go to the tab called contents.
Then if you are clever enough you would of downloaded a modded CoD4 gpd as the title of this topic is about gpds.
So go to the file called 415607E6 (CoD4 GPD) then right click on it and click replace file.
Once you have replaced it click Rehash and resign. and put your profile back into your xbox.
Then on the xbox(The one with the cleared system cache) go onto CoD4 with it and when it prompts you to update DO NOT UPDATE then once you have declined the update hit multiplayer and go to System Link.
Create a game but do not choose a team.
Now with your internet cable put that into the back of both xboxs.
With the Normal Xbox(With system cache) go to system link and search for a game when you find the game join it and choose a side.
Get the infections such as speed,Xp,Jump,GodMode, Wallhack,Aimbot back out and go to splitscreen and go play on that if the infections are there then go online such as Xbox live or Private match anmd have fun.


NOTE: As the xbox has no system cache it may take a while to find the xbox BUT IT WILL EVENTUALLY.