Horde Bash

The Horde Bash event went live 10/5/17 in Fortnite: Save the World

Normal
Normal waves consist of Husks, Husky Husks, Pitchers, Beehives, and Lobbers, with the occasional Mist Monster and Shielder.

Lobber
Lobber waves have more lobbers than usual, destroying weak bases.

Smasher
Smasher waves contain many more smashers than normal, and multiple can spawn at the same time.