i am having a problem of playing MP since i am new to this. i don't know where to get the serial code and how?
maybe cuz i still can't find it so i don't know where to get my serial key cuz i am dying to play multiplayer ,i've finished the game already it was really amazing but all i need now is a serial code :T.
I guess you're just a kid, but don't ask for help on official forum if you're playing pirated game!
You're playing cracked singleplayer, but if you want to play multiplayer, BUY IT!