I didn't make it!
How do I know which files in the "C:\Program Files\Activision\Call of Duty 2\main" folder are mods and which are game files?
all the stock iwd files are named -
iw_00.iwd > iw_15.iwd; localized_english_00.iwd > localized_english_11.iwd
Mot mod files begin with zzz - for example zzz_something.iwd