Operation: Firestorm is one of the largest and most impressive mods for Generals Zero Hour. It significantly expands the game: adding 8 unique generals with their own ability trees, new units, buildings and superweapons, improving graphics, interface and sound, as well as expanding the tech tree.

Uploaded06.11.2025 20:17
VersionBeta 02
Size363.00 MB
Views74
Downloads32

Localizations:

EnglishGerman

The mod is localized into 2 languages

(You don’t need to download anything extra to play in these languages)

Installation Instructions mod Operation: Firestorm

1) Requirements

WARNING: THIS INSTALLATION REPLACES SOME OF YOUR FILES! BACKUP YOUR GAME FOLDER OR ELSE YOU NEED TO REINSTALL ZH IF YOU WANT TO UNINSTALL THIS MOD.

IMPORTANT: This is a full release, no previous version of OFS should be installed.

This install should overwrite all files from the previous release, but just to be safe, make sure all OFS files from Beta01 are removed before installing Beta02.

Requirements:

  • A clean C&C Generals Zero Hour installation Patched to 1.4

  • What does clean mean? - No other mods. To be sure your ZH folder folder

  • should not have an "Art" subfolder and in "Data" there should be no "INI" folder.

  • And no file with the ending ".big" that does not belong to default C&C:Generals ZH may be there.

  • If you want to keep your Zero Hour folder clean, you can make a copy and install the mod

  • there. You can have multiple ZH's with different mods, I do this with all mods.

2) Add the mod files

Add all files from the archive into your Zero Hour folder (default or copied one).

It should look like this:

../Command & Conquer Generals Zero Hour/!OFS_INI.big
../Command & Conquer Generals Zero Hour/!OFS_ART.big

(and all other bigs)

It's the correct folder when default .bigs and generals.exe are there.

3) Setup the UI files

16:9 widescreen UI is enabled by default.

To enable 4:3 UI:

  1. Remove the !OFS_WindowWide.big file

  2. Rename !OFS_Window43.big.OFF to !OFS_Window43.big

4) Setup the language files

English language is enabled by default.

To enable German language, remove the !OFS_English.big and add !OFS_German.big to the game folder.

NOTE: For other language versions see the Extra section at the bottom of this file.

5) Optional: Install the Map-Pack

Extract the content of the MapPack archive into your "...\Documents\Command and Conquer Generals Zero Hour Data\Maps" folder.

6) Optional: HD Controlbar mod

We recommend that you install the HD Controlbar mod from here (http://www.gentool.net/download/controlbar/) to get the default icons and UI textures to match with the higher res Icons in OFS.

7) Activate OFS

No activation required in this version

8. Run OFS

Run 1 of the START bats. They will start in 1280x1024 or 1920x1080 resolution. If you have another resolution copy one of the bats and edit it.

Change the -xres and -yres arguments to your resolution, you can also add

  • -win (starts the game windowed)

  • -quickstart

  • -noshellmap

You can also just create a shortcut to generals.exe and put the commandline arguments there and set up the correct resolution in Options.ini in your Zero Hour Data folder.

EXTRA: Setting up a different language

(ONLY DO THIS IF YOU DON'T HAVE AN ENGLISH OR GERMAN VERSION OF THE GAME)

If you have a different language version of the game than English or German (which means you will get "MISSING:xxx" texts ingame and won't hear any new unit voices) but still want to have English (or German) texts/speech, then you'll have to manually edit the .big files:

  • Get FinalBIG (or some other .big editor), extract the files from !OFS_English.big (or German) to a temporary folder and rename all 'English' (or German' folders to your language version.

  • You then need to pack the files back into a new .big file and put it in your game folder.

You might need to adjust the Activate/Deactive .bat files to use the correct filenames.

How to Install Operation: Firestorm | Modstalgia