Start Fortnite in 'Creative' mode

Select 'Discovery' then 'Island Code'

Type in (or copy/paste) the map code you want to load up.

You can copy the map code for 🏴󠁰󠁷󠀱󠀰󠀰󠁿CTF 💯Red vs 🧊Blue 🆕 by clicking here: 9104-6107-2926