Coming from Shogun 2 and Rome 2 , having no auto replenishment in M2 really bugs me. While it's not auto replenishment but close enough i think xD.
I added units pool bonus from city (like Urban Spear Militia) to castle and vice versa (also units from knight order to both city and castle). All the others units i added to the road building line.
https://mega.co.nz/#!dxdCSDzI!8jl-ZS...y13KSyIMH62bmw
Place the file in data folder (mods/SS6.3/data) (backup your file first)
*Some units may not be retrained (can still be recruited and retrained if you have the building ,just not everywhere) , i deleted them from the list for testing but didn't record so i don't know which one is missing.
*The recruit pool per turn is quite high so tweak them to your liking if you want. ( road building starts at line 7084 or just search for "road")
Code:
recruit_pool "Cossack Gunners" 0 0.5271 0.9 0 requires factions { cumans, kievan_rus, russia, } and event_counter HANDGUN 1
change the 2nd number.
*Move the recruit pool bonus to other buildings if you don't want it tied to road (or maybe a new building)