As a kid, I inherited (and read) a lot of my family’s old Star Wars novels. The most relevant to Fuldapocalypse and most fun are the X-Wing novels by Michael A. Stackpole and the late Aaron Allston. For books that are both movie tie-ins and video game tie-ins at the same time, they’re actually really good.
Especially Allston’s. The Wraith Squadron series are a combination Dirty Dozen and fighter story (and yes, fighter pilots somehow turn into effective commando-spies. But this is Star Wars), and manage a degree of emotional height (Allston’s not afraid to kill off developed sympathetic characters) and comedy (such as someone having to fly into battle with a giant stuffed Ewok in his lap-long story) without feeling jarring at all.
Stackpole’s books are more formulaic, less daring, and he has the tendency to take game mechanics a little too literally, but they’re still solid and still better-scaled than a lot of the other Star Wars books of the time period (which have all the antagonist problems of 1990s technothrillers and then some).
Technothriller authors could do worse than read these. They’re good examples of how you can manage a decent-sized cast and medium-scope story, and they’re fun.