the new DLC .pak file to re_chunk_000.pak.sub_000.pak.patch_002.pak . The trailing number ( 002 ) is crucial; it must be the next number in sequence after your main game patch.
: Navigate to your game's root folder and locate the re_chunk_000.pak.sub_000.pak file. Make a copy of it and store it in a safe, separate folder. This is your backup in case anything goes wrong. rechunk000pak better
You want = faster + safer + smaller (if compression improves) + stream-friendly. the new DLC