The intended path was pride. The actual path, thanks to the mpdata file, was chaos.
C:\Program Files (x86)\Steam\steamapps\common\Call of Duty 4\players\profiles\[YourProfileName] Retail/Disk version: cod4 mpdata level 55
: Swapping files carries a high risk of corrupting the profile, often requiring a complete delete and restart if not backed up. The intended path was pride