The game organizes its assets by language. You will typically find this file located in: C:\Program Files (x86)\Steam\steamapps\common\Call of Duty World at War\zone\english\
mods. While it focuses on custom maps and "Zombies" mods, the comment sections for major patches often contain community-contributed links for language fixes. Reddit (r/CODZombies or r/CallOfDuty) Cod Waw Zone English Patch.ff
Guide :: How to Fix Resolution, Improve Graphics and Mouse Aim The game organizes its assets by language
before opening any such file.