good question
when I had IM there was mini missions that contributed to 2 end goals. I enjoyed working on all of them or just one of them to get a multiball to aid in the others - sometimes it was decided on how the first ball was played - quick or strategic or failed strategic.
CFTBL is not that complex in rules basically complete 4 missions to spell film for then a chance at multiball - the ball launch is strategic depending on previous ball progress.
In the end for me I am not into real deep rules, and like the choice to chop and change - I think I would get board with a set order and knowing me would never achieve the end goal. At the moment a guy is re-doing the game code for Jurassic Park and one feature that he is changing is the missions, so it is random instead of the same fixed one that you always start with. Alot of people are welcoming the code change with this feature.