The Chosen members are tasked with hunting down or kidnapping enemy of the Project. They train cultists for combat. Their uniform is a grey jacket with a distinguishable red ski mask.
As Infantry unit they usually act as Assault or Sniper like in the past games. They may have a bow but they do not utilize stealth as much as Hunter in Far Cry 4. They can also fly airplanes to conduct aerial combat which will be very dangerous if you are on the ground because they can quickly take you down with intermittent machine gun running and bombing if you are not careful enough. So it is highly recommended to get a RAT4 guided rocket launcher to deal with them. In case you don't have it, it is also reasonable to deal with them to aim for the cockpit with usual infantry weapons. If you use fixed heavy weapons you may get bombed to instant death.