I have read various postings on similar issues to mine but I did not see an answer. All of my perk advancements seemed to freeze as I have been playing for days and no changes. I deleted the User.Ini and KillingFloor.ini and this seemed to fix the solo game but not online. I tried head shots with the 9mm in solo and watched to head count increase. I then tried it online with a white listed map and head shot count does not increase. I have uninstalled Killing Floor and re-installed it and still seem to have the same issue.....HELP!!!