Someone needs to implement this guide and prepare the document in this URL: https://michaeljcole.github.io/wiki.unrealengine.com/How_To_Package_Extra_NonUASSET_Files_With_Your_Game/
Package extra Non Uasset files to make them accessible while hosted in E3DS.
There are on UASSET files (videos, texts etc.) which you expect UE4 to load but it does not get added when you package the game.
Moves Files :
Make sure your files are exist in a subfolder under your unreal projects content folder .
Project Settings
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Search for Additional
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Add!
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now do packaging and files will be added in packaged project
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