Follow orders and defeat all liabilities.

Kill 5 enemies while using a zombie as a shield.

Revive 31 teammates (lifetime)

Complete the sixth mission of the U.S.S. campaign.

Heal with 101 Green Herbs (lifetime)

Complete the fourth mission of the U.S.S. campaign.

Complete the third mission of the U.S.S. campaign.

Kill an infected teammate with a headshot before they become a zombie in any mode.

In Survivors mode, have all 4 players on your team Survive the game.

Purchase an ability.

Kill a Rockstar or someone with this Trophy in a public multiplayer match.

Complete the single player story mode.