Stackpole ends his series with a bang. 'Mandatory Retirement' is indeed second only to 'In the Empire's Service' in the series in my opinion (as I prefer the larger-scale arcs) and is indeed uniquely Star Wars.
The story begin with light scenes of the various Rogues intermixing, socializing, and so forth, building the characters enhanced over the course of the series. Intermixed with these, however, are grim scenes of the events on Coruscant and Cituric. Pestage, intermin Emperor, goes into hiding, and the hunt for him begins. Dinner, dancing, and enjoyment ends for the Rogues and they are suddenly thrown into the mix of things.
One of the high points in this story are the many philosophical conversations about the Empire and the Repulbic and the differences between them. The conversations between Fel and Pestage and the clash between Nrin, Fel, Pestage, and Wedge after one of the Rogues is lost are both some of the best SW I've ever read. One must also take note of the dire contrast between the first and second halves. The Rogues begin by relaxing and enjoying themselves (except for to lonely, rejected Fel) and events transpire that put these same people in a dire, morbid situation where their hope for survival looks bleak. superb writing by Stackpole.
Onto the art. The Nadeau-Crespo team is a success, with and very good mix of people and technology. X-wings, Y-wing, Bantha-class shuttles, and Star Destroyers all look superb, in particular a jaw-dropping two-page battle shot towards the end. Crespo does very good faces and their expressions. One of my favorite parts of the whole arc is the full-page shot of the Rogues and Kapp Dendo's commandoes standing over the cloth-covered body of a fallen Rogue. (Who will remain nameless, of course.) The expressions on each and every face is a virtual window into what each one must be thinking. And once again the coloring by Dave Nestelle is superb, perfectly conveying the feelings of bleakness and hopelessness in some scenes while conveying one of tranquility and enjoyment in others.
In a series like Rogue Squadron, when you have dozen of characters, its hard to balance it out. But Stackpole does it just as well as he has throughout the series. Fel once again is a superb character, while others like Nrin show both their good points and their flaws very well. Pestage starts out as an almost sympathetic character, but as time goes on he becomes more and more loatheful.
Not perfect, but still highly reccomended. It's also one of the few examples in Star Wars where an actualy deep, philosphical reason against the Empire is established. Bravo to Stackpole and crew for a great ending to a great series.