Heirs of Elendil is a submod for Third Age: Total War - Divide & Conquer which allows the kingdoms of Arnor and the Reunited Kingdom to be united among others. It introduces many new map features, female generals, tons of new scripts, and overhauls the armor upgrades for the Northern Dunedain faction. For a more comprehensive features list and change log, please see the Total War Center page and join the community on Discord.
Rhudaur is a subfaction of the Edain faction. They have a unique Hillmen religion and therefore their own portrait pool. The portraits are drawn from more outlandish fantasy-barbarian helmet designs.