recruit_priority_offset (export_descr_unit.txt)

This is the new command in EDU, which is supposed to influence how frequently or infrequently the AI decides to recruit this unit. So far, 0 seems to be the neutral setting, as for peasants; Prussian Archers (I'm using the teutonic campaign) are -10, probably indicating undesirability; dismounted ritterbruder have 35, and cavalry ritterbruder have a whopping 90.

I'm guessing the number is referring to percentage, out of 100, to select recruiting that unit whenever it becomes available.