This tutorial is for X-Packer 10.4
Please familiarize yourself with these tutorials before attempting this:
Save functions
I had to code X-Packer to write values into the memory of the game as the save uses a custom checksum. You need to use the 64 bit version of X-Packer and also have the official dlc pack installed.
The process flow is as follows:
1. Start the game and get to the title screen i.e after the save has been loaded. Leave the game running and start X-P