Agree with the above. Mike and I did this kind of by accident - was just no way I could have pushed him off the objective. Granted I guess if we had had to go turn 6 I could have stuck the bikes in the far corner out of reach.
There was also the question last night about what happens to a flyer that flies off turn 5, but then the roll is for no turn 6. Is the flyer still alive for the campaign?