How do you coordinate with your alliance on the Dragonfire map?

The map is a team game. A well-coordinated alliance takes Seats no single player could. The right habits:

• Group your Strongholds in one area (use relocation, available every 2 days). Close together means you reinforce and defend fast.
• Drop markers and (X,Y) coordinates in alliance chat to point at a target ("we're hitting The Twins, 1069,1757").
• Split the roles: who scouts, who opens (softens the defender), who follows in waves, who holds after the capture.
• Lock the area down with garrisoned ruins around the Seats you hold.

On the big objectives — capitals, King's Landing at +20,000 — it isn't optional: you need several players in several waves at the same moment. Share the coordinates and the time, and hit together.