From time to time I see some sections of the map with Yellow Highlight/Outline, which is pulsing...I mouse over them and the indicator shows zero population, and many times they are sections deep within a faction's territory, not near the areas where the other yellow/orange indicators are flashing to show fighting...what is the Yellow Outline for on those sections of the map?
Regions outlined in yellow means they're the objective for a mini alert. "Capture amp stations" or "capture large outposts" as examples.
