When users search for "best Codex save," they are usually looking for a "100% Completed" file. This isn't just a slight advantage; it is a nuclear option. These files often contain:

If you are looking for the "best" save game for the Codex version, you are likely encountering the biggest downside:

: Using modified saves or "Online Fix" files while connected to the internet can lead to permanent bans on your Microsoft or Steam account .