Reach level 50 with one character

Make a total of 1,000 augmentations across all armor pieces

Add your first augment to any weapon or armor piece

Open 100 Strongboxes

Slow 5,000 zombies with the Biocleanse Bomb skill (Medic class)

Encounter and destroy 1 of each zombie, elite, and boss type

Eviscerate 1,000 Devastators

Wipe out 10,000 zombies with the Assault Team skill (Assault class)

Extinguish 1,000 Wickers

Open 10 Strongboxes

Hold a level 20 character in each of the 3 character slots

Reach level 11 with one character

Kill 5,000 zombies using grenades

Terminate 1,000 Zombie Mechs

Complete Last Stand without letting a single zombie past the first barrier

Rescue every single survivor on the Survivors map

De-worm 1,000 Regurgitators

Kill 5 or more zombies with a single car explosion

Reach level 2 with one character

Drop 5,000 Bloaters

Pick up $1,000,000 in SAS4 Cash loot drops

Make 1,000 successful stands

Successfully defend the ship 1,000 times

Successfully defeat the pods 1,000 times

Successfully complete Power Out 1,000 times

Survive Survivors 1,000 times

Successfully extract the vaccine 1,000 times

Successfully escort the whiny VIP 1,000 times

Make a total of 50 augmentations across all weapon and armor pieces

Open 10,000 Strongboxes

Kill 5,000 zombies using turrets

Snuff 1,000 Necrosis bosses along with all 3 children

Complete Last Stand without a single zombie getting through

Defeat all zombies on Onslaught without allowing either of the ramp doors to fall

Resist 1,000 zombie attacks using the Die Another Day skill (Heavy class)

Chew up 5,000 Spitters

Bash 1,000 zombies using the Close Quarters Combat skill (Assault class)

Do not open any pods besides the boss pod

Apply 25 total skill points on a single character between Fast Reload and Fast Movement (at least 5 points in each)

Sell 5,000 weapons or gear pieces

Destroy every breakable object in the VIP's mansion

Apply 25 total skill points on a single character between Health Regen and Energy Regen (at least 5 points in each)

Kneecap 5,000 Runners

Bash through 5,000 Shielders

Obliterate 5,000 Stalkers

Apply 25 total skill points on a single character between Toughness and Body Armor Expert (at least 5 points in each)

Complete Vaccine with a 4 player team where you extract the vaccine and get all 4 players on the ship in less than 5 minutes

Level up an Assault, Medic, and Heavy character to level 10

Fill any augmentation slot up to grade 10 on any single weapon or armor piece

Evacuate the VIP without him taking any damage

Fill any augmentation slot up to grade 5 on any single weapon or armor piece

Make a total of 1,000 augmentations across all weapons

Find all hidden stashes in the the original 7 maps

Pulverize 5,000 Shamblers

Allow every survivor to, well, not survive

Complete Power Out without any player on a 4 player team taking any damage from the central turrets

Heal to death 10,000 zombies with the Zombie Antidote skill (Medic class)

Personally curb stomp 1,000,000 zombies

Vaporize 10,000 zombies with the Aerial Bombardment skill (Heavy Class)

Successfully complete Recovery 100 times

Squish 5,000 zombies while driving a vehicle

Crush a boss zombie while driving a vehicle

Flatten 20 zombies with a single drift

Complete Recovery without ever entering a vehicle