Y5S4 Update

At long last, with the help of @anonymus19941 and @DisappointedBird, Chalet, Skyscraper and House are finally updated!

To open locally, just unzip site.zip and open index.html to get the maps, or check out https://purechaose.github.io/r6maps (if it doesn't update, try holding down Shift while you refresh the page).