Hi there.
Just tried your mission. It works fine so far. I know it's WIP so I might give some comments about the things I've noticed by playing it through :-)
After the lift off I got the message to pitch the rocket to 70°, but I didn't know in which direction. North, south, west, east? :-D It might be obvious, but with a short introduction or a more detailed note during the flight it might be easier to understand.
Also it would have been nice to know what the main goals are from the beginning. I failed to miss the last task of reaching the final height and the whole process stopped. You could try to make a second path before reaching the final node and granting less points or so. I think you could make a nice little mission out of that.
Are you still working on that? :-)