ArcGIS Mission 1.0 is a web app in ArcGIS Enterprise 10.8. ArcGIS Mission is a geospatial communications and situational awareness tool. ArcGIS Mission allows you to create, share, and monitor maps, teams, and other materials for use in operations. ArcGIS Mission has three components: Manager, Responder, and Server.
The ArcGIS Mission Manager web app is where missions are built and organized. ArcGIS Mission Responder allows mission engagement through a mobile app. ArcGIS Mission Server is an ArcGIS Enterprise server that links Manager and Responder. For more information, see What is ArcGIS Mission.