Call of Duty: Modern Warfare 3 was revealed inside of Warzone with the new Shadow Siege event, which tasks players with bombing Al Mazrah's Zaya Observatory in order to obtain chemical weapons from an underground bunker. While this is a special LTM mode, you can also complete these steps to bomb the map in standard battle royale, earning you access to all the loot hidden from this secret bunker.

How to bomb Zaya Observatory

Bombing Zaya Observatory in the Shadow Siege mode completely changes the landscape of the area, but the map looks undamaged in standard matches. However, you can still complete steps to bomb the map mid-game.

You'll see purple smoke flares on the map as you drop into your match. These are marking the locations of the giant missiles activated during the Shadow Siege event. Unlike in the event, you won't need to activate all eight of the missile launchers. You'll only need to activate five of them. This can be done in solos if you have a vehicle to get around the map quickly, but this will be faster by splitting up in squads. All locations can be found marked on the screenshot below.