Sword_Of_Geddon
Arbiter of the Sword
I've been wondering about this. I ran into an issue where two worker UUs caused my mod to stop loading when they were mentioned in a routoinfos xml file that was also modular. I've created a Medieval Worker unit(upgrades from Workers), and Modern Worker(Upgrades from Medieval Worker). I personally have had no issues running my mod with these additions, but some have trouble loading the mod and I'm unsure what the cause is.