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Not only that, every major faction has options that the player can take to radically alter their directions, like turning Caesar's Legion into an actual nation-state or turning the NCR into an oligarchic dictatorship in all but name.
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The player can play as any of the West Coast factions in addition to a plethora of original ones. Old World Blues is a popular Hearts of Iron IV Game Mod set in the Fallout universe, or rather, an alternate universe version of it.
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