just to make it clear and sorry if i didnt explain correctly :c
in CoD4 we are playing on gameranger, this game have alot and hackers and every day we caught players cheating during tournaments and friendly cw, sadly any player who gets busted can change his game CD key and open a new gameranger account , with that he will have a new identity and none gonna find who was he, thats why i wanted to know how can we identify someone by his logfile in moss (probably in tournament when every team register their players they have to put each player ID as his identification)