I just applied mentioned mod and it looks so interesting. I tried new race and found that there are two units of Shadow Elves that cannot be bulid in town (I think). They are: Marksman (Tier II; archery type) and Exile/Exiler (I am using PL version so not sure which translation is correct) (Tier III; infantry type). I found them in game's encyclopedia but no option to bulid them.

Are these units uniq for camping or? Maybe there is any option to produce them but I need additional buildings in town? Or something else?