https://www.gamespot.com/articles/new-fortnite-battle-royale-mode-high-explosives-no/1100-6457924/

The Sniper Shootout event may have recently ended, but a new limited-time mode is now underway in Fortnite: Battle Royale on PS4, Xbox One, PC, and mobile. For the next few days, players can take part in High Explosives v2, a modified version of the explosive-centric playlist that ran back in December.

As its name implies, High Explosives v2 is all about blowing things up. All non-explosive weapons are disabled in this mode, leaving the Grenade, Impulse Grenade, Remote Explosive, Rocket Launcher, and the recently added Guided Missile as the only weapons players will be able to use.