Originally posted by Sea Tyger
The PG has a page on advanced characters (at the end of Chapter 6, I believe...I don't have the book out at the moment...find the big picture of Gowron and you're on the right page ) that gives a general guideline for time-in-service-based "pre-show" advancements.
I would have the PCs develop their character concepts, then assign them a number of advancements based on where the characters were stationed and what was going on at the time (i.e., stationed on a starship in the middle of, say, the Tholian-Federation War).
What tyger said... In general, I assume 1 advancement for each 2 years in service post-academy for new characters. In general, I figure 1-4 advancements for lower officer, fresh dept. heads; 5-10 for experienced dept head through new commanding officers. Above that, I usually reserve for NPC's. I've never had to go above 22 advancements to get a GOOD NPC.
From there, the players develop their characters, with minimum requirements (like, when they get their promotions and Command edges) to ensure that the characters look like they have a legitimate history when you look at their advancements.
"War is an ugly thing but not the ugliest of things; the decayed and degraded state of moral and patriotic feelings which thinks that nothing is worth war is much worse. A man who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself."
John Stuart Mill