When we modify content that is updated in the update.big files, will the content in the update.big files override the mod files of the main folders?
In classic HW1 files from Update.big always override appropriate files in Homeworld.big. Files from filesystem, however, loaded only if they are newer.
Seems to Steam-version of HW1 still look for external data files beside exe file, not in …\Data folder. Also note, that all files in Homeworld.big dated to the 17-Feb-2015 in initial release and to 27-Feb-2015 in first update (however, the contents of the files remain identical), so all external files with older date aren’t loaded.