They found bits from random savefiles and constructed something vaguely resembling a simulator route out of it. If even that. “Leak“—the Malaysians are not good faith players in this.
Really, I can only point to this: https://news.ycombinator.com/item?id=34509899t. Maybe look into the MS Estonia sinking, the cover-up (of the unfortunate results of a spy game) is very obvious there.
>In 2016, a leaked American document stated that a route on the pilot's home flight simulator, which closely matched the projected flight over the Indian Ocean, was found during the FBI analysis of the flight simulator's computer hard drive.[256] This was later confirmed by the [Australian Transportation Safety Bureau], although the agency stressed that this did not prove the pilot's involvement.[257] The find was similarly confirmed by the Malaysian government.[258]
Really, I can only point to this: https://news.ycombinator.com/item?id=34509899t. Maybe look into the MS Estonia sinking, the cover-up (of the unfortunate results of a spy game) is very obvious there.