I bought the game 2 years ago and played the marine campaign to completion(which I really enjoyed) but didn't feel like doing the other 2 campaigns at that moment so I left the game and now i'm in the mood so I installed the game again and played the predator's campaign to the end and can see that I can select a mission to play with the predator but when I look at my marines selected missions it just has them locked like I need to replay the entire campaign again, did I do something wrong?
