The “battle code” required to play Homefront’s online modes has been released a week ahead of the main game on the PSN and Xbox Live. New copies of the game will have a one time code that will allow you access to the game’s multiplayer, but if you like your games pre-owned the you’ll need to pay £6.29/$7.99.
As much as I hate these online passes, it seems they’re here to stay. So make sure you buy your copies new if you want to play online.