Fans wanted a war game to be more real, so they leaked classified docs

Washington Post - Technology News 

Beginning in 2021, players of "War Thunder," a popular, free-to-play vehicular combat video game, have thrice posted classified documents related to three tanks of British, French, and Chinese origin, in an online forum dedicated to the game. The posting of the documents was reported first by UK Defence Journal, which wrote that one poster, who uploaded the manual to a British Challenger 2 tank, said he was motivated by a desire to get a "War Thunder" developer to make the tank more accurate in the game. Another poster, who claimed to be part of a French tank unit, uploaded a Leclerc S2 manual while engaged in an online debate about its turret rotation speed. The motivations of the user who posted allegedly classified information about China's DTC10-125 tank, and a piece of materiel, was not clear.