Guys, I think it is easy enough that I'll try to tackle that one on my own.
But maybe someone can do it better/faster than me.
provided I have enough gildars, create a very often (I'd like to see it around once every fifty turns) event, that will offer a random mercanery unit (out of several types to provided variety).
the unit should be consisting of at least two squads and a stronger unit captain, the cost should be similar to about half cost of rushing that unit and the unit should have at least double or triple the wage costs.
an option for furhter consideration is reduced/increased cost depending on traits (warlod, general, etc) and redcuing/increasing frequency depending on prestige (higher prestige - more often)
comments?