Why do some green flags have 3 stars under them?
They are so called "First to Capture" or "FTC" that means an item, which was deployed and not captured for 90 days.

This item is marked with 3 stars since it was capped for the first time..

This first capture is possible (as with JumperFlags) within 60 seconds for any number of players and brings tripple points.

[caption id="attachment_5506" align="alignleft" width="300"] Sample of FTC's[/caption]