DAZ Studio can't make anything. It's a content sales app designed to sell you DAZ clothes and dollies.

Hexagon 2.5 on the other hand is a comprehensive mesh modeling app, maybe not as fancy as 3DS or Maya, but much easyer to use.

Carrara is what you need for game moding. It does it all at a reasonable price. It is a mesh modeler, texdtures, rigs and export in colada or FBX.

Blender; even though it has improved greatly of late, is proof aliens walk among us and write graphics apps.

None the less these are of no help to do anything with this game.

I spent a couple of year converting papyrus race tracks from cars to GT500 a motorcycle racing game. It was so much fun working .x in note pad. A lot of the moding was raw, meaning some had to be done in a hex editor. eeeeeeeeck.