Steve, Nancy, and Robin infiltrate the Upside Down Creel House to destroy Vecna’s physical body with Molotov cocktails and shotguns.
"Papa" dies in the desert after being shot down by military forces while trying to save Eleven (at the end of Episode 8/start of 9). 🔓 The Ending Explained Stranger Things - Season 4Eps9
Despite the team's efforts, Vecna technically wins the battle. Because Max died (even briefly), the fourth gate opened, causing a massive "earthquake" that tore through Hawkins. Steve, Nancy, and Robin infiltrate the Upside Down