Revive 31 teammates (lifetime)

Kill 5 enemies with Blood Frenzy in a single campaign game or multiplayer match.

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

Cumulative point total from Hasegawa's directives hit 5,000.

Defeat each type of mutant variant.

Complete the four chapters of Part II.

Mod one weapon or piece of armor.

Defeat 10 zombies using wield-able objects.

Land 100 head shots with Akiyama.

Defeat 100 zombies.

Survive 1 wave in a Special Ops Survival game.

You found 25 hidden cages.

2nd MVP in a ranked match