Achieve a combat multiplier score of 30

Defeat the Root Mantis

Complete mission "In the Shadow of Starlight".

Complete mission "The Great Vault".

Complete mission "Blood Drive".

Unlock 10 Vehicle Parts via hijacking.

Complete mission "Lair of the Harpy".

Kill two or more enemies with a single sticky grenade.

Complete 20 Side Missions.

Complete mission "Atlas, At Last".

Complete mission "Taking Flight".

Kill an enemy, knifing them with a gun blade.

Complete mission "Children of the Vault".