I'm currently at the Flight School with Michael and have completed all the plane missions. However, the chopper missions are giving me a really tough time. I mean I can fly the chopper but going through all the checkpoints is where I keep failing!!
I wanted to know if I can get on with the story missions without completing the Flight School in it's entirety or will the game not let me progress any further without me completing all of the flight lessons?
P.S. Last mission completed: 'Scouting the Port'.