The things you will need:
A common.ff
FF Viewer
CoD WaW PC
WinRAR

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1. Open your Common.ff in FF Viewer. For Example I will use Interruptuer Principal v1.2
2. Scroll through until you find these .gsc's:
maps/_debug.gsc
maps/_createcam.gsc
maps/_createdynets.gsc
maps/_ cheat.gsc
maps/_hud_message.gsc

3. Right Click and choose "Export File" and name the file that you exported so for example
"_debug.gsc".

4. Once you have exported all the files, create a folder named "maps", move all of the files into that folder.

5. Right Click the folder and choose "Add To Archive" WINRAR REQUIRED!!

6. Change the file format to .zip

7. Rename it to "maps.iwd". Click Ok

8. Navigate to your Activision folder in AppData

9. Go into your Mods folder and create and new folder and name whatever you like, For Example "Mod Menu v1.2".

10. Move your "maps.iwd" into that folder.

11. Load up CoDWaW

12. Select Mods and select the mod you named, for example ill choose "Mod Menu v1.2"

13. Once loaded go to Options and go to game options and select enable console [Yes] No

14. Load up Der Riese

15. HAVE FUN!!

I will be uploading Video Footage of me on WaW pc playing the mod menu.
And one last thing, DO NOT FLAME PLZ! This is my first tutorial.

Thank You