Hello today i have started to play cod mw3 and i played to 61 lvl.Then i quit the game and after some hour i started again and there was (your data is corupted,or didnt dowloaded property)and i need to reset rank to continue.What can i do pls help me i dont want to become my 61 lvl back i just want to when i start the game to i dont need to reset always rank.