@moderators thanks for moving that and if its ok I will answer so everyone know how this works.
We are using ADS-B exchange data and have it sent to a TAK-SERVER and its filtered for public safety aircraft and we have a script to add the aircraft call sign, icon type for helo or fixed wing and then wether its an Air attack, air tanker, Intel ship etc.
Right now this is on a testing and evaluation server and ADS-B exchange has been gracious with an API Key because we are supporting public safety. If someone want to use ADSB Exchange data for profit they charge a pretty hefty fee.
I would love to release this TAK-SERVER certificate at a later date when this hosted in a non T&E environment for everyone to use. In the current configuration it is basically a feed and your location is not shared so you have some privacy.
Now you can track all these aircraft outside of ATAK of course with flight radar 24, adsb exchange etc but having it in ATAK is pretty nice because you have the call signs, is filtered so you dont see all the other aircraft, you get all the other layers and maps, can get live ETAs using the blood hound tool etc.