Okay then...
You'll need to view the .big files in the game directory:
http://cncgeneralsworld.com/downloads/downloadmanager.asp?action=showPage&page=modding Scroll down until you see
FinalBIG v0.4 & download it.
After that go to the Zero Hour game directory:
C:\Program Files\EA Games\Command & Conquer Generals Zero Hour\1) Open the AudioEnglishZH.big file with FinalBIG.
2) Click
Edit>Extract All & browse for the Zero Hour game directory & select it. (Don't open the directory, all you want to do is select it.)
3) Click
OK. This will extract all the contents of the AudioEnglishZH.big file into the game directory. (It may take several minutes for the extraction to complete. Note that FinalBIG will look frozen during this time.) So if you change the files that get extracted, they will override the files in the AudioEnglishZH.big. So if you don't like what you're doing, just delete the files you extracted & the game will use the AudioEnglishZH.big again. This goes for all the files that are in .big files.
4) Extract all files for the AudioZH.big too the same way.
5) Now open up the INIZH.big file & scroll down until you see,
Data\INI\SoundEffects.ini.
6) Click on
Edit>Find & type in the Find window,
AirField (All of the stuff EA named has no spaces in the INI files. You'll then see this:
AudioEvent AirfieldUSASelect
Sounds= baiasela
Limit= 1
Volume= 50
Type = ui player
End
The
baiasela is the file that the airfield uses. So if you go to the files you extracted & replace the baiasela.wav file with another wave file with the same name, that is what you'll here in the game. (The files are located in the
Data\Audio\Sounds\English\ folders in your game directory. Half of them will also be in just the
Sounds folder.
If you're still confused about something don't hesitate to ask.