Best Compression Methods for 'Specific' Games. Q&A

[Fak Eid]

Got this compression ratio for the .pak file on Hellblade 2: Senua's Saga
for .ucas file we need to apply UE5 compression, but require key for it.
@Kaktor, can you help in identifying the key for UE5 engine on Hellblade 2

 18:24:33 - You have chosen the unlimited type for the output size.
 18:24:33 - ISO images will not be created when conversion is complete.
 18:24:33 - The computer will remain on when the conversion is complete.
 18:24:33 - Selected ARC/DS method for Data-01.RGT was: xtool:mzstd:dd3+lzma2:d256m:fb273:lc4:mc1000000
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 18:24:33 - Compression initialized in 22-05-2024 at 18:24:33.
 18:24:34 - Starting Data-01.RGT archive creation.
 18:27:11 - Moving Data-01.RGT file to media folder.
 18:27:11 - Compression finished in 22-05-2024 at 18:27:11.
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 18:27:11 - Getting size of the game: Unknown 1
 18:27:11 - » Installation folder size: 13.23 GB
 18:27:11 - » Compressed game size: 8.02 GB (Ratio 60.61%)
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 18:27:11 - Overall input size: 13.23 GB
 18:27:11 - Overall output size: 8.02 GB (Ratio 60.61%)
 18:27:11 - Overall conversion time: 00:02:37
 18:27:11 - Overall conversion media: 1 custom media