Dwarves seems to be the solution. But in order to accquire their best units You should be friendly with them since training mountain keepers or iron guardsmen by your own at the beggining of the game is almost impossible (considering required experience). Here is the exact formula for minimum relations with a given faction to rescue prisoners:Plasquar said:The only solution I see is VERY heavy infantry.
If your relation with a soldier's faction plus 3x of your persuasion skill >= 40, you can recruit a soldier of any level.
If your relation with a soldier's faction plus 3x of your persuasion skill >= 0, you can recruit all of those whose level is smaller than yours+2x*persuasion
If your relation with a soldier's faction plus 3x of your persuasion skill >= 0, you can recruit all of those whose level is smaller than yours+2x*persuasion
It's not like You have to stick with the dwarves if You don't like their look, its just for the "greater good"