Quote Originally Posted by teutonicwarrior
i thought i had some polish retainers earlier in the game, but i don't see to have them anymore, is there a text file of sorts that says when different units can be built?
Yes, it is 'crusaders_unit_prod11.txt'. However, it rather a mess of numbers and text, so it is useful to download an editor to view the text properly, like the Gnome editor. You can find it here: 3D downloads.