Finish the prologue.

Trigger a cross-class combo with a character you control in single-player mode.

Awarded for completing 10 different bounty hunts.

Awarded for obtaining the Sea Cow.

Awarded for running 15 different errands.

Kill 30 Enemies with the Tau Sniper

Kill 30 Enemies with the Mk-NDI

Kill 30 Enemies with the KAL-7

Successfully Counter all of a Brute's Damage-Giving Attacks

Kill 20 Enemies with Headshots

Defeat 20 Enemies with Hand-to-Hand Combat

Finish the Game on Easy Without Changing the Difficulty

Kill 30 Enemies with Mk-NDI Grenades