To install Antis "This is the End" Sound Effects:

1. Goto your ..\User\Documents\my games\Fallout4 Folder and open the Fallout.ini with any Text Editor,
   then search for this Entry:

sResourceDataDirsFinal=

Replace the whole Line with the following one:

sResourceDataDirsFinal=STRINGS\, TEXTURES\, MUSIC\, SOUND\, INTERFACE\, MESHES\, PROGRAMS\, MATERIALS\, LODSETTINGS\, VIS\, MISC\, SCRIPTS\, SHADERSFX\

this Entry will let the Game use the different contents and folders included in your Fallout 4/Data Folder. :o)

2. Replace the Data Folder from the Package with your Fallout 4/Data Folder.

3. Run the Game and Enjoy Anti's End.

Greetings,
- VoiceActor