If you can’t find saves in any of these locations, run a search for *.sav or slots inside your C:\Users\[You]\AppData and the game’s root folder.
Whether you’re replaying the Banished warship mission for the tenth time or unlocking armor permutations offline, your save file is your legacy. Protect it, back it up, and enjoy Halo Infinite the way repack users always have – free, flexible, and without launcher headaches. save game halo infinite repack