I've been thinking about this skill system in this game and wondering if there shouldn't be more niche protection for careers. It almost feels like anyone can do anything they want, as long as they invest XP in their skills. And let's face it, having that Marauder be pretty great at Computers, Medicine, and Mechanics seems a bit of a stretch.
For example, a player can build a high Intellect character, say a Slicer, and with some points thrown into medicine can be nearly as good a Doctor as a Doctor. I mean, sure, maybe the kid took some first aid classes, but the buy-in for non-career skills isn't all that high (just an extra 5XP per rank), and suddenly hacker because old sawbones. Same goes for Mechanics.
And the same can be said of other careers. Take one focused on Ranged (Heavy) and a few additional XP makes him as sneaky as a thief, just lacking the talents to round him out.
Should there be a penalty for making skill attempts outside your wheelhouse? A setback die or two, depending on how rationally far away from your skillset it might be? (A Slicer might get a single setback die for any non-career Knowledge check, while a Mechanic might get two. But a Mechanic might understand the basics of Medicine - after all, biological bodies are really just super-advanced machines, right? - so he'd only get one setback.)
Should a great Doctor be a reasonable Slicer by default? (I can tell you from years of working as a tech at a major hospital, most doctors don't know jack about computers. *chuckles*)