With RUB the idea was that they fatigue much more slowly, but you have to rotate them on a regular basis as they don't fatigue while in their bunks. It wasn't my cup of tea but a lot of folks seemed to like it.
There is also the "No Fatigue" setting in SHIII Commander, which makes it all moot. Me, I'm weird; I still use the stock fatigue model. I guess I just like ordering them around.
Maybe I should have been a kindergarten teacher.
