You cannot become a true ghoul in Fallout 76
Ghouls are not a playable race in Fallout 76
You can use ghoul-themed cosmetics and outfits
You can roleplay as a ghoul with face paint, masks, and clothing
You can use mutations and perks to create a ghoul-like build
You can stay in irradiated areas to maintain a ghoul-inspired playstyle
You can use Rad-X, RadAway, and radiation management to control your health
You can wait for future updates if Bethesda ever adds playable ghouls