Anyone found a way to reimport the edited models back in the game proper?

It's fine that I can extract the models and edit them but the goal is to make mods, so I need a way to put them back into the game.

How do we go about this?

The patch archive I have is about 1.48gb obb file. I guess that's my problem, either it's incomplete or I just can't open it. You get to unpack it with the BMS script to reach 3.55 GB. Still, it didn't explain how you generate 30 GB of data. Perhaps because I selected all the .dat files in the BMS ...

including 3.55 GB for the patch obb archive

The patch archive I have is about 1.48gb obb file. I guess that's my problem, either it's incomplete or I just can't open it.

Is it normal that the extracted folder is over 30gb?

It seems a bit excessive, considering the game is about 4gb.