Fortnite patch v9.21 adds a new Grenade Launcher and the new Horde Rush mode

7:54am PDT - June 12th, 2019    fortnite patch notes - Polygon

Fortnite’s patch v9.21 is bringing the new Proximity Grenade Launcher to the game, along with increased spawns for certain important items, and a new cooperative mode called Horde Rush.