The all units mod is your friend in this case.
It gives your engineers the ability to built that partisan hut which will allow you built all partisans need for those achievements.
Its no fix for sure, but a workaround after all
What kind of sorcery is this?
Well, thanks for the hint. Thats a nice workaround.
Relic Entertainment
cblanco ★ 
보드카 중대 
VonManteuffel 
Heartless Jäger 
