This Guide will teach you how to fix the "Corrupt Data Error" from trying to Prestige Hack and here is how to fix the Error on the PS3 without File Swapping, Please note this must be done for each new user!
[1] Load MW2 WITH the V1.11
[2] Go to "Splitscreen"
[3] Load "Error" file
[4] When you get kicked back to the Multiplayer Menu go to "LAN"
[5] Go to "Change Offline Profile" In "LAN" and load your "Prestige File"
[6] Hit circle so you get back to the Multiplayer Menu
[7] Go back to Splitscreen
[8] Re-Load the "Error" file
[9] Exit MW2
[10] Start the prestige hack as normal (fast forward to 2:30 in The prestige hack video)
The Prestige Hack Video Can be found in this thread:
https://www.mpgh.net/forum/236-playst...-1-10-ps3.html
Thank you to Make My Day for posting it on MPGH!
Credits to GR3EN_CHRONIC For the Guide!