My notes
These 5 missions are required to unlock this achievement, however, you can skip the first one if you find it too difficult, but you must make up the points in the following missions. I got through with 2 ratings of H1 and 2 ratings of H3.
From a Steam Guide
-Prelude: A Normal Day At Work-
- This one was the hardest for me you can skip it if you can get a high enough score on the other missions.
- You must keep above 34mph, if you drop below you have 10 seconds to get back to speed(timer dosen't reset).
-Journey To The Set Location-
- Do Not wreck the film car.
- Damage matters.
- from what I have seen you don't have to really keep up with the film car but you must know how to get to the filming set it is taking you too.
-Carnage Course-
- Damage doesn't matter to much here.
- Hit the front or back of the car in your way to get by them and reduce damage.
-Stunt 2: Jump-
- Little damage doesn't matter.
- Turn on the Nitrous Oxide(N2O) at the beginning with the button in the lower right corner.
-Action Chase-
- Little damage doesn't matter.
- You don't have to race around the Turn the car will wait for you.
- You must land on top of the car to finish the mission.
-Finale: Ballistic Bus-
-Not to much to this one Drive as straight as you can at the ramp and turn on the rockets(button in the lower right corner) when your straight on the ramp.