Hey, Experiment5X and I have created a tool which allows you to edit your Modern Warfare 3 offline stats(MPdata). This can be used to level up in split screen/system link, and you can also change your classes straight from the application. It is not completely finished, but we may get back to working on it soon. We plan to add support for Killstreaks and Challenge Unlocking.
1.0.5.0:
[details=Open Me]Source - http://www.mediafire.com/?pggeb09bhb49k9z
Executable - http://www.mediafire.com/download.php?tqv0tqbl8eilz8x
[/details]
1.0.4.9 (stable):
[details=Open Me]Source - http://www.mediafire.com/download.php?bh6da8wt8aef3al
Executable - http://www.mediafire.com/download.php?6k3nuzmdijp3nc4[/details]
1.0.4.3(stable):
[details=Open Me]Source - MW3 Offline Editor.zip
Executable - MW3 Offline Editor.exe[/details]
1.0.3.0(possibly unstable):
[details=Open Me]Source - MW3 Offline Editor.zip
Executable - MW3 Offline Editor.exe[/details]
1.0.2.1:
[details=Open Me]Source - Multiupload.com - upload your files to multiple file hosting sites!
Executable - Multiupload.com - upload your files to multiple file hosting sites![/details]
1.0.1.4:
[details=Open Me]Source - Multiupload.com - upload your files to multiple file hosting sites!
Executable - Multiupload.com - upload your files to multiple file hosting sites![/details]
1.0.1.0:
[details=Open Me]Source - Multiupload.com - upload your files to multiple file hosting sites!
Executable - Multiupload.com - upload your files to multiple file hosting sites![/details]
1.0.0.0:
[details=Open Me]Source - Multiupload.com - upload your files to multiple file hosting sites!
Executable - Multiupload.com - upload your files to multiple file hosting sites!
VirusTotal - Free Online Virus, Malware and URL Scanner[/details]
Change Log:
1.0.5.0
- Minor bug fixes. (RPG value incorrect)
1.0.4.9 (all versions are now stable)
- Fixed bug with Prestige Tokens
- Added filtering for the open button
- Fixed another bug with unlocking accolades
1.0.4.3 (stable)
- Fixed unlocking bugs for accolades, challenges, and weapons
- Prestige token editor added
- Fixed bugs for reading/writing kill death ratio
- Minor spelling improvements & minor bug fixes
- Tested for stability, this version is stable
1.0.3.0 (possibly unstable)
- Unlock all weapon items
- Unlock all accolades
- Very minor UI changes (for the above)
1.0.2.1
- Added support for strike packages
- Added support for redicle sight
- Minor UI changes
- Minor bugs fixed
1.0.1.4
- Fixed the 17 & 18 item ID bug
1.0.1.0
- Merged assembly
- Checks to now ensure you are openeing the correct file
- Framework has been downgraded to 3.5
- Added a hidden camo (Maybe founder?)
- Minor bugs fixed
1.0.0.0
- Initial release
Please report any bugs, and feel free to suggest for future updates. 
READ: Make sure you extract the mpdata out of the mpdata CON file, and then open the extracted onto the application.







