Late in the night, a party of goblin-scouts discovered the location of the Ranger-refuge known as Esteldín. The goblins have fled to Dol Dínen, where you must dispatch them before they can bring reinforcements.
Breach and secure the main gate of Dol Dínen.
Breach either the western or eastern gate of Dol Dínen.
With a path cleared through one of the gates, the central gate now bars your way from reaching the goblin-scouts.
Secure the entrance of the Graug's encampment at the top of the hill looking down upon the central gate.
Seek out and destroy the catapults that lie outside Graug's tent. This will allow the Rangers below to secure the camp below.
The courtyard has fallen. Now all that remains is to defeat Graug and destroy any remnants of the information that he has gathered.