Missing textures + can't start game

[Massdey]

When I get into the dlc stuff, it's not installed and I can't play it, the textures look like this :

[Cahz]

Massdey https://forum.plutonium.pw/topic/7155/how-to-install-the-t6-dlcs?_=1625752278336

[Resxt]

Massdey answer is simple: the game can't load the DLC files if you don't have them in your game folder.
That's how every game works, you cannot load DLC maps without installing them.
Follow the T6 DLC guide linked above.