Friends first of all I apologize if I posted in the wrong place. I have great doubt about the lagoons saves checksums. I know chacksum serves to verify file integrity, if you have something wrong it crashes (corrupted file). I really want to start creating my own mods, but not knowing how the checksum works, it is very difficult. My question is how to make the sum, where to find the addresses needed to make the sum. I leave attached two saves of the game Red Faction: Guerrilla and print below. Save Original Save Edited for test I would love a return even if negative .. Save edited http://monkeystraducoes.trd.br/projetos/save_game_edited.zip Save Original http://monkeystraducoes.trd.br/projetos/save_game_original.zip Abs ... SP: Posted the saves on my site because the ceiling attachment is 500kb. Each save is 900kb