Heya. Fallen heroes accompany wiedergangers, resurrect themselves like wiedergangers, even LOOK like wiedergangers without their helmets, but resist arrows and crossbow bolt fire like ancient dead skeletons. Just a bit of inconsistency.
Edit: nevermind, seems like wieds naturally take damage reduction as well. Just not as much as skeletons? And I was confused cos fallen heroes have higher HP than wieds.
Edit 2: Incidentally, the fallen hero decided to stand up without it’s head.
http://steamcommunity.com/sharedfiles/filedetails/?id=895075684