a Russian engineer was arguing with a Lockheed Martin engineer on some video game forum about some military simulator War Thunder

 and leaked classified information on the cross section of the Russian fighter jet SU 57

It is hardly the first time that gamers have shared details about classified military hardware. It was two years ago information about the British Army’s Challenger 2 main battle tanks (MBTs) was posted to the forums, while just six months later manuals for the French Leclerc Série 2 MBT were also shared.

In both cases, operators of the tanks had attempted to dispute the game’s depiction of the respective vehicles and to win arguments with other players.

Just last Jan, 2023, manuals for the McDonnell Douglas F-15E Strike Eagle and General Dynamics F-16 Fighting Falcon were posted also on the game’s forums for similar reasons, and so too were key attributions of the Su-57. According to reports, just days after the F-15E and F-16 details were posted to the forum, gamers also shared a classified document regarding the Russian aircraft’s radar cross-section, while additional information shed light onto the Su-57’s airframe.

https://www.reddit.com/r/NonCredibleDefense/comments/10hjri6/su57_leak_su57_leak/?rdt=55828

https://www.19fortyfive.com/2023/02/russias-su-57-stealth-fighter-did-a-video-game-leak-its-secrets/