Hello. I'm playing RTW 1.5, no BI/A.

1.) General's bodyguards kinda "regenerate" over time, like if he lost some of his bodyguards during battle, then their numbers will slowly regenerate over time, however, it will take too many turns to regenerate completely. So I wonder: how can I make general bodyguards retrainable in towns OR how can I speed up this "regeneration"?
2.) Is there any way to allow to bribe spies and assassins?