Reach Rank 1 with all 4 Infantry classes in multiplayer

Reach Assault Rank 2 in multiplayer

Complete 25 Squad Orders in multiplayer

Reach Rank 10 in multiplayer

Using a bolt action rifle, kill an enemy Scout in multiplayer

Perform a melee kill on 10 enemies anywhere in the campaign

Complete one challenge in the campaign

Play a round of Carrier Assault

In a round get 5 kills with air vehicles in Gulf of Oman

Use the special power of Auriel's Bow

Kill 200 feral zombies

Complete chapter 2

Complete chapter 1