Midnight Club L.A.

[Z Trip]

Ok, here is my problem. I pretty much beat the game but I am having a hard time near the end. I will complete a mission, but then like 20 minutes later, that same mission come back for me to beat. I only beat the city, exotic and bike champs so far, knowone else has called me for a race. How do I trigger them to call me so I can get the achivment?

Also, I am missing 2 barrels. Which 2 are hardest to find? LOL

Thanks

 

[Z Trip]

TTT