The RoA scenarios allow you to take control of the Four horsemen of the apocalypse and the Avatar of Wrath in the destruction of Erebus.
Currently using: Civ4/ BtS1.17 /FfH.32l
The main thread here link is located under the Fall from Heaven forum in the Mod-Mods scenarios and maps sub-forum.
Once downloaded place the file into: C:/Program files/Firaxis Games/Sid Meier's Civilization 4/Beyond the Sword/Saves/Worldbuilder
Riders of Armageddon Scenarios for FfH 2016-10-05
Riders of Armageddon Scenarios for FfH