Hope you don't mind a little feedback. <3
The text needs some cleanup still. There's a fair amount of confusing leftover copy/paste, especially in the names of careers. It makes it hard to track what you're attempting here. Example: the Astronaut - Smuggler section still refers to "Natural Scientist" ; Tech Guru is also called "Science" in places; mention of alien pregnancies is still in there, etc.
Have you had a chance to playtest this much yet? I ask because careers are really interconnected in TS4, requiring a lot more diverse skills and actions to gain promotions, and the way some of this is currently set up is not balanced very well and in some places, broken.
Culinary - Chef, for example, in addition to raising cooking skill requires cooking a large number of high quality meals of different types to advance. Are you intending for this to happen during the course of regular 'feeding' and only on a grill? The necessary recipes are not going to all be available on the outdoor grill. Just Culinary lvl 4 or so requires an excellent grilled cheese to advance, for example. Chef levels will require creating a large number of different recipes, and gourmet recipes that won't be available on the grill either. Since mastering Chef is the only way to unlock a stove, and we can't master Chef without using a stove, we've got a catch 22 there.
For a balance example, let's take Criminal. Without the daily fines or protection money of the original challenge (not that I actually miss those, haha), or the risk of having to quit your job when you get pregnant (there is no maternity leave in TS4 - you can go to work every day, easily, in fact your sim will automatically do it even if they're feeling horrible), there really isn't a compelling reason to bother with the Criminal branches. The "only one of each type of crafted items" restriction there doesn't have a lot of relevance yet, either, as the decent woodworking items (toilet, tub) are all locked by other careers anyway.
Not trying to be discouraging. I loved Pinstar's original challenge and would very much like to see it adapted for TS4 in a playable manner. :)
