basically i just beat the game...i want to go back into it and start doing all the side missions, job board, races...etc...that i missed.

when i press continue campaign in the main menu though it just takes me back to the last 30 sec of the game...

since i was saving over top of the same file every time, does this mean that if i want to do all the side missions i have to start a new campaign and play them that way ?

or can i resume somehow in the one that i have already played ?