https://www.pcgamer.com/a-fallout-76-player-thinks-theyve-uncovered-a-secret-ending/

A Fallout 76 player believes there's a secret ending to Bethesda's survival romp. They're setting out with some volunteers to see if they can bring it about with a calculated nuclear assault on post-apocalyptic West Virginia, specifically the fissures that spawn scorchbeasts. 

"I'm tracking a secret hiding in plain sight, and I need your help," reads the post from Reddit user International_XT, like a plea to an old Jedi master. It's full of spoilers, so beware. They reckon they've stumbled onto a hidden final objective and that killing the Queen in the final mission was not actually the end.