f3gi Posted March 29, 2013 Share Posted March 29, 2013 Last December I bought a brand new sealed copy of this game from a shop on ebay. About 10 days ago I finally installed the game and beat the campaign. I thought that now I should try the multiplayer side of the game and here is where I encountered a problem. I keep getting the error message that my serial number is invalid or that it is already in use by another player Please help Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.