Get 50 kills against players.

Get into the Supermarket

Pick up a backpack (Bug-Out-Bag)

In Campaign, kill 5 enemies from over 100m away.

Defeat 100 Afflicted in the main campaign.

Beat a Friend's Skill Game Score

Have Moira stun an enemy and Claire follow up with a physical attack in the main campaign.

Attack and destroy a monster.

Open your inventory.

Use planks and sticks to make a sword.

Survive until Round 10 in Outbreak.

In Mob of the Dead, obtain Hell's Retriever.

In Der Eisendrache, wall buy the BRM.