Here are all of the quests for level 3:
Soldiers need food!
Remember that running an army can become very expensive. You need food to feed the soldiers. Objectives:
Build one, level 1, farmhouse.
Rewards, 33 XP, 55 wood, 50 food.
You need coins to pay for recruiting additional soldiers. You obtain coins by collecting taxes from dwellings. Objectives:
Build one, level 1, dwelling.
Reward, 33 XP, 40 stone, 55 wood.
Enemy at the gates 1/3
We need more space in order to improve our defenses. Objectives:
Build a second castle extention.
Reward, 36 XP, 40 stone, 70 wood.
Enemy at the gates 2/3
Our soldiers need tools to help them defend. Build a defense workshop! Objectives:
Build one, level 1 defence workshop.
Reward, 38 XP, 50 stone, 100 wood.
Enemy at the gates 3/3
You can build tools in the defense workshop that will give you soldiers a significant advantage in battle.
Own one Defense rocks.
Reward, 38 XP, 50 coins, 100 stone.