When you drop a flare, your Group will be able to answer your call and come visit your current location. Each flare last for one hour and allows all members of your Group to travel to where the flare was dropped. To drop a flare you need to open your Inventory, click on the flare icon and then place the flare on the map.

After travelling to your location members of your Group will be able to battle any Infestations, Encounters, or Raiders within reach of the Flare. They’ll be also able to collect Supply Crates, build new Safe Houses, and drop off Survivors at Safe Houses. They’ll even be able to drop another flare within range!

The only thing they won’t be able to do is travel on the map from where the Flare is dropped. Flares can be found from the Group Board rewards and in the Combat Crate in the Shop.