Polygon's Chris Plante recently published an incredible and extensive article on The Bureau: XCOM Declassified. It goes into detail about its history from when the franchise was acquired in 2006, the changes it has gone through, the teams that became involved, the troubles that were encountered to establish the game's identity, and how it ultimately became the game as we know it now through the accounts of various anonymous sources.
The game formerly known as just "XCOM"
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