Earn 5 Gears in a Challenge.

Complete Story Mission: Welcome Home.

Achieve Level 5 Evil Karma

Finish the Game on Normal Without Changing the Difficulty

Defeat 20 Enemies by Blind-Firing While in Cover (without aiming)

Kill 30 Enemies with the Tau Sniper

Kill 30 Enemies with the SAS-12

Kill 30 Enemies with the M9

Kill 30 Enemies with the Mk-NDI

Escape from Victor on Quartu.

Completed Chapter 4 of Episode 1

Completed Chapter 2 of Episode 1

Kill 30 Enemies with the KAL-7