DUde.... its so straightforward if that people dont get AT LEAST A WEAPON 375 AND THE CLOAK its means they dont want to play the game.
You 120, you get nathanos/alliance equivalent questline to Nazjatar (if you are a fresh player you need to get WQs unlocked i believe too) then you need to do ESSENCE QUESTLINE ON HIGHMOUNTAIN, THEN The Nzoth Questline appears. Its so easy it baffles me how people are so.... ugh.