the English.pak is a special case because its designed to be swapped out without messing up muliplayer and English is assumed if not stated
so for example if i want to play with spanish subtitles my game folder will have an extra 'laguage' sub folder called spanish [in this case] sitting in the manu as well as the default english one... i see text in spanish but the game can still play against anyone else because everyone still has the english pak to work from
if you make a mod that replaces any system file instead of just sitting on top like the pak files then the result will kill peoples ability to muliplayer
