Battlefield 4 Existing player profile data appears to be damaged and cannot be used

There's unfortunately no way to fix the damaged corrupted profile but you can simply delete it and re-download it. Please follow the instructions below to safely delete the profile and then download it again.

Delete Profile Safely:
 

• Select Delete Profile Only. This deletes the profile but leaves saved games and achievements. > This is what you'd want to pick.
• Select Delete Profile and Items to delete the profile and the associated saved games and achievements.
   

 Download Profile Again:
 

1. Press the Xbox Guide button on your controller (large X button in the center of your controller).
2. Select Download Profile.
3. Enter the Windows Live ID associated with your Xbox LIVE gamertag.
4. Now, enter your Windows Live ID password.
5. Select the storage device for your profile (for example, Hard Drive).
    

Your profile should begin downloading now. 

Now if that didn't work "like for me" try this: Delete Profile and Items

1. Go to Settings, and then select System.
2. Select Storage.
3. Select All Devices.
4. Select Gamer Profiles.
5. Select the gamertag that you want to delete.
6. Select Delete.
7. Select the following

Delete Profile and Items. NOTE: you may wnat save any campign saved games such as; Skyrim, Fallout, and any other game with campaign to a flashdrive or create a offline account profile such as one meant for playing offline and move all game saved data to that profile. If you don't follow these instructions you could lose all campaign related saved data.

1. Press the Xbox Guide button on your controller (large X button in the center of your controller).
2. Select Download Profile.
3. Enter the Windows Live ID associated with your Xbox LIVE gamertag.
4. Now, enter your Windows Live ID password.
5. Select the storage device for your profile (for example, Hard Drive).
    

Your profile should begin downloading now

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