what activates FADE protection in Operation flashpoint

[thatguy]

no its not because I have modified exes and the game works fine in single player, internet play, and lan play. I had never seen any fade stuff until yesterday when my roommate and the guy across the hall all put all 6's as their serial number. Instead of assuming you are right why don't you just go try what I said because its worked 4 times and unless you got somthing other than the clone cd or iso release it should work for you too.