The main plot is completed for 100% (without using cheats or trainers)! Inside the archive you can find save-files with different progress (including the final boss).
Quake 4

SaveGame Description

Installation
1. Download archive (Last Update: 19.02.25).
2. Extract files using 7-Zip (WinRar) ulillity program.
3. Backup your saves.
4. Copy the data to the following folder:
C:\Program Files)\Quake 4\q4base\savegames. *
5. Run Quake 4!C:\Program Files)\Quake 4\q4base\savegames. *
* The paths may change depending on the version of the Operating system.

Download Save

Save Editor
Bad News! There is no save-editor (or information about it) found for this game! Sorry!