The reason is that save game data for video games, especially for achievements and rankings, involves unique identifiers and checksums that are specific to the Xbox 360's hardware and the game's software. These are difficult to replicate or modify without specific tools and knowledge.
The reason is that save game data for video games, especially for achievements and rankings, involves unique identifiers and checksums that are specific to the Xbox 360's hardware and the game's software. These are difficult to replicate or modify without specific tools and knowledge.