Thread:LOTRMod/@comment-25842841-20150623020933/@comment-25869554-20150623195153

Well it was said that Olog-Hai were bred in Dol Guldur during Sauron's time there.

Also, there should definitely be less Olog-Hai in Mordor, they seem to be more common than any other type of troll, which doesn't make sense. They should be much rarer and maybe only spawn in the Udun vale...