Use an enemy combat robot to kill 10 enemies.

In Campaign, kill an enemy through a wall or obstruction.

Complete the King's Fall Raid.

Get 100 kills in a single mission.

Complete a Strike with a full fireteam consisting of only your clan members.

Discover 50 dead ghosts.

Complete "The Wolves of Mars" quest.

Complete "The Court of Oryx" quest.

Create an Iron Golem.

Craft and place a Sign.

Stop starvation using Rotten Flesh.

Wear a full suit of Iron Armour.

Play for 100 days.