SAS: Zombie Assault 4

Level Up

Very common85.2%

Reach level 2 with one character

Cleanup

Very common77.6%

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

For Me

Common51.6%

Open 10 Strongboxes

Augmented

Common51.4%

Add your first augment to any weapon or armor piece

Impounded

Uncommon39.6%

Kill 5 or more zombies with a single car explosion

Goes Up to 11

Uncommon27.1%

Reach level 11 with one character

Upgraded

Uncommon26.9%

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

NLL

Uncommon26.7%

Complete Last Stand without a single zombie getting through

Hero

Uncommon20.5%

Rescue every single survivor on the Survivors map

Mo Betta

Uncommon18.6%

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

None Shall Pass

Uncommon17.0%

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

Boxer

Uncommon15.7%

Open 100 Strongboxes

You Shamble, I Scramble

Uncommon15.5%

Pulverize 5,000 Shamblers

Complete Set

Uncommon13.7%

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

Loose Change

Uncommon11.4%

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

Stalkee

Uncommon11.2%

Obliterate 5,000 Stalkers

You Have No Secrets

Uncommon10.8%

Find all hidden stashes in the the original 7 maps

Top 10

Uncommon10.7%

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

Precision

Uncommon10.4%

Do not open any pods besides the boss pod

Run, Zombie, Run

Uncommon10.2%

Kneecap 5,000 Runners

My Little Friend

Rare9.1%

Kill 5,000 zombies using turrets

Oh Spit

Rare8.7%

Chew up 5,000 Spitters

Redecorator

Rare7.9%

Destroy every breakable object in the VIP's mansion

Liposuction

Rare7.0%

Drop 5,000 Bloaters

Not Today

Rare6.7%

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

Shields Down

Rare6.7%

Bash through 5,000 Shielders

Hard Line

Rare6.6%

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

50 Cal

Rare5.4%

Reach level 50 with one character

Drift King

Very rare4.8%

Flatten 20 zombies with a single drift

Hit and Run

Very rare4.0%

Crush a boss zombie while driving a vehicle

Pistol Whipped

Very rare3.4%

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

Test Driven

Very rare3.3%

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

Transporter

Very rare3.1%

Evacuate the VIP without him taking any damage

Quicksilver

Very rare2.9%

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

Full Stables

Very rare2.8%

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

Necrophobe

Very rare2.6%

Snuff 1,000 Necrosis bosses along with all 3 children

Weapon Specialist

Very rare2.4%

Make a total of 1,000 augmentations across all weapons

Zero

Very rare2.1%

Allow every survivor to, well, not survive

Tank

Very rare2.0%

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

Field Commander

Very rare1.9%

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

Grenadier

Very rare1.8%

Kill 5,000 zombies using grenades

Recycler

Very rare1.8%

Sell 5,000 weapons or gear pieces

Zombie Reaper

Very rare1.8%

Personally curb stomp 1,000,000 zombies

Armor Specialist

Very rare1.7%

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

Devastation

Very rare1.5%

Eviscerate 1,000 Devastators

Hacked

Very rare1.5%

Terminate 1,000 Zombie Mechs

Regenerator

Very rare1.5%

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

Zero Casualties

Very rare1.5%

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

Zombie Heal Thyself

Very rare1.5%

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

Fireman

Very rare1.4%

Extinguish 1,000 Wickers

Hurl

Very rare1.4%

De-worm 1,000 Regurgitators

Most Toys Wins

Very rare1.3%

Open 10,000 Strongboxes

Team Sprint

Very rare1.3%

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

Zombies Go Boom

Very rare1.3%

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

Eco Warrior

Very rare1.2%

Complete Recovery without ever entering a vehicle

Map Master - Pods

Very rare1.2%

Successfully defeat the pods 1,000 times

Map Master Onslaught

Very rare1.1%

Successfully defend the ship 1,000 times

Map Master - Survivors

Very rare1.1%

Survive Survivors 1,000 times

Map Master - VIP

Very rare1.1%

Successfully escort the whiny VIP 1,000 times

Map Master Last Stand

Very rare1.0%

Make 1,000 successful stands

Map Master Power Out

Very rare1.0%

Successfully complete Power Out 1,000 times

Map Master - Vaccine

Very rare1.0%

Successfully extract the vaccine 1,000 times

Vehicular Manslaughter

Ultra rare0.5%

Squish 5,000 zombies while driving a vehicle

Map Champion - Recovery

Ultra rare0.4%

Successfully complete Recovery 100 times