I lost lvl 18 on Deathrun and i lost lvl 34 prestige 16 on Kill the King cuz when I started CoD4 it said restarting data. 
 
			
									
		Deathrun and Kill the King
- 
			
- 
			Kill the King - Lost your prestige? Write here. 
 Thats just for KTK. And you need for DR and KTK a proof. For example a screenshot or video where it shows yout prestige/level to get your exact lvl back.
- 
			Small advice: To keep u're data after format or whatever, just do a copy of players folder. It's in game instalation directory  Edit: If u won't chnage your cd key ofc. 
- 
			Please provide picture or video evidence 
- 
			give me your guid, I'll check it