Complete all Stunt Jumps.

In Shadows of Evil, spot the Shadowman fives times in one game.

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

Get 5 Medals based on a Specialist Ability in a single game.

Get a Specialist-based medal that requires 3 or more rapid kills while using any Specialist Weapon.

In TranZit, kill one of the denizens of the forest while it is latched onto you.

In Buried, acquire a perk for free.

In Origins, activate all generators without allowing one to stop.