All trucks are unlocked (except Scout 800).
Only 2% of the game completed (immediately after the tutorial).
Tested on game version 26.2, the official STEAM version. (no DLC)
Steam - go to the game folder, follow the path where your saves are located (for the steam version it will be: "C:\Steam\userdata\"your number"\1465360\remote") make a backup copy of CompleteSave.cfg and paste the downloaded file with replacement.
EpicGames - rename CompleteSave.cfg to CompleteSave.dat, insert the downloaded file with a replacement where your saves are located.
Author: Pavel Volov