The "Fall of Civilization" is a modification for Age of Empires III. The mod will reconstruct 14 Medieval civilizations across the globe in terms of appearance(of UB & UU),unique units,and unique strength.
Russian Worrior is a unique unit for Byzantine Empire. In history, Byzantine Enpire has a huge amount of Russian mercenaries, the most famous one is the Varangian Guards. In the game, Varangian is the Royal_Guard upgrade for Russian Worriors.