"Hi,
Thank you for contacting Activision Technical Support!
We are sorry for the inconvenience this has caused you.
Unfortunately, Activision is not able to reset or restore anyone's account in online multiplayer.
We do not have access to anyone's stats or multiplayer rank in the game.
Rank resets usually occur by an interrupted communication between your console, ISP or the server.
If there was a loss of packets or bandwidth at the end of a match or being unexpectedly ejected from the game, the stats can result in a reset or rollback when the stats were uploaded to the server.
When this happens, there is corrupted data on the data file that is transferred to the Master Servers at the end of the match.
In receiving the data, the Stats Servers try to correct the data file by resetting the stats.
The only other reasons to have stats reset is due to illegal activity or boosting in the game.
You can view our Security & Enforcement Policy using the following link: http://community.callofduty.com/thread/100341470
Your original stats and ranks cannot be retreived or restored because the file was overwritten.
If you continue playing, there are instances of rank and other stats retrieved to your account.
If this occurs frequently, please check you network connection and contact your ISP to have your line quality tested.
To prevent this from occurring in the future I recommend opening up your ports and forwarding them to a static IP address:
•Set port forwarding on your router to the IP address of your Playstation 3. This game uses ports 53, 81, 88, 3074, 3075, 3478(UDP) and ports 53, 80, 81, 443, 5223, 3074(TCP).
•For voice / video chat and online game play, direct communication with other PlayStation 3 systems is used for data transmission during voice / video chat and online gaming. The port number used for this is UDP: 3658.
You can check out www.portforward.com for further assistance in port forwarding your router or contact the router manufacturer.
Thanks! "
Thank you for contacting Activision Technical Support!
We are sorry for the inconvenience this has caused you.
Unfortunately, Activision is not able to reset or restore anyone's account in online multiplayer.
We do not have access to anyone's stats or multiplayer rank in the game.
Rank resets usually occur by an interrupted communication between your console, ISP or the server.
If there was a loss of packets or bandwidth at the end of a match or being unexpectedly ejected from the game, the stats can result in a reset or rollback when the stats were uploaded to the server.
When this happens, there is corrupted data on the data file that is transferred to the Master Servers at the end of the match.
In receiving the data, the Stats Servers try to correct the data file by resetting the stats.
The only other reasons to have stats reset is due to illegal activity or boosting in the game.
You can view our Security & Enforcement Policy using the following link: http://community.callofduty.com/thread/100341470
Your original stats and ranks cannot be retreived or restored because the file was overwritten.
If you continue playing, there are instances of rank and other stats retrieved to your account.
If this occurs frequently, please check you network connection and contact your ISP to have your line quality tested.
To prevent this from occurring in the future I recommend opening up your ports and forwarding them to a static IP address:
•Set port forwarding on your router to the IP address of your Playstation 3. This game uses ports 53, 81, 88, 3074, 3075, 3478(UDP) and ports 53, 80, 81, 443, 5223, 3074(TCP).
•For voice / video chat and online game play, direct communication with other PlayStation 3 systems is used for data transmission during voice / video chat and online gaming. The port number used for this is UDP: 3658.
You can check out www.portforward.com for further assistance in port forwarding your router or contact the router manufacturer.
Thanks! "