Help Your Country To Clear The Virus Infection
Complete Mission 1 (Any Difficulty Level)
Complete A Mission Without Dying
Fully Upgrade A Single Stat Of Any Weapon In Campaign Mode
Collect An Armor Piece
Survive to Round 10
Collect All Armor Pieces
Collect All The Loot In Any Mission
Collect All The Loot In Every Mission
Find all mementos in single player campaign in a single playthrough
Survive to Round 5
Get the Apocalypse Combo Kill Bonus (150 Kills)
Complete a Round with a Kills-per-minute rate of 100 or more
Complete a Round in Co-Op Without Either Player Taking Damage
Complete Campaign Mode In Co-Op Mode
Find all the Egogate emblems
Complete Mission 2 (Any Difficulty Level)
Complete Mission 3 (Any Difficulty Level)
Complete Mission 4 (Any Difficulty Level)
Complete Campaign Mode On 'Morbid'
Collect All Trophies
Fully Upgrade All Stats Of Any Weapon In Campaign Mode
Complete A Mission Without Receiving Any Damage
Complete Mission 6 (Any Difficulty Level)
Complete Mission 7 (Any Difficulty Level)
Complete Mission 8 (Any Difficulty Level)
Complete Mission 9 (Any Difficulty Level)
Complete Mission 10 (Any Difficulty Level)
Complete A Mission In Co-Op Mode (Any Difficulty Level)
Complete A Mission On 'Undead'
Kill 1 000 Zombies
Complete Campaign Mode On 'Normal'
Complete Campaign Mode On 'Grim'
Kill 10 000 Zombies
Kill 53 597 Zombies
Perform 500 Headshots
Perform 500 Melee Kills
Blow Up 1 000 Zombies
Burn 1 000 Zombies
Destroy 500 Vehicles
Complete Mission 5 (Any Difficulty Level)