Dol Guldur is one of the weakest and least extensive Orcish factions in the mod, lacking Uruks and bombardiers. Yet they have formidable Mirk-trolls and Spiders in their armies to help make up for this. They are still a serious threat to good-aligned players and factions, and their home biome, under the dominion and influence of Sauron once again, is not easily entered or overrun.