Hello all. I have done all three of the Zombie kill trophies,that's 1337,12,345 and 100,000. There are instructions in the folder. Re-Sign the save to your profile and you are good to go. Please note that this game is the PSN PAL version of the game.
The save Files In 1 Folder
https://mega.nz/folder/m50VXJwZ#h4z0s9iptT20lHkbcpwPaA/folder/Dp1lECiY
The save Files In 1 Folder
https://mega.nz/folder/m50VXJwZ#h4z0s9iptT20lHkbcpwPaA/folder/Dp1lECiY