This page of the trophy guide for Far Cry 6 explains how to unlock the Friendly Skies trophy. You'll get it for blowing up 16 anti-aircraft (AA) guns in the single-player campaign. We have described step by step what the gun destruction process looks like.
Anti-aircraft guns are one of the unique categories of enemy structures in the game world. You will be finding and destroying them on your own, as active AA guns make it impossible to fly safely in an area.
You can discover other anti-aircraft guns by exploring the game world or by examining the exclamation points on the world map - this could be e.g. one of the guerrillas who you can question about important enemy locations in the area. They are on military bases where sneaking isn't mandatory.
Once you find the AA gun, you can destroy it in various ways:
- use the Exterminador Supremo (image above), which activates rocket fire,
- use any launcher, grenade launcher, or frag grenades,
- use a tank or helicopter with rockets.
Regardless of the method you choose, the only thing that matters is that the anti-aircraft gun has to be blown up. You don't have to secure the entire military base where it was located. Repeat these steps with 15 more AA guns.