https://www.polygon.com/2018/10/25/18022598/call-of-duty-black-ops-4-blackout-map-battle-royale

There’s now an (unofficial) interactive map for Call of Duty: Black Ops 4’s battle royale mode, Blackout.

Simply called Blackout Map, it is a Google Maps-style interpretation of the mode’s landmass. It includes potential spawn points for vehicles, including ultra-rare helicopters, as well as zombies, Mystery Boxes and stashes. Fans can use the map to place pins and mark routes, even adding custom text to the map. They can then send creations to their friends as custom links. The map works in a browser, so you can have it open on your phone or tablet while you play.