There is a Creative map that allows players to play Chained Together in Fortnite.

Deathruns have been a staple in Fortnite's Creative side of things, with one of the first popular Creative maps being Cizzorz Deathrun.

Here, you will see a search bar prompting you to enter the designated UEFN map code for the Rapid Realistics 2v2 map: 3237-7822-8160. Once you've entered the assigned map code, you can hit confirm.