Here is the full list of all 43 Survivor Squad achievements.
Wield a Vendetta
Clear 20 areas
Survive 30 days
Craft 5 weapons
Get a Survivor to Level 5
Successfully defend an area
Found a bomb!
Destroy 5 hearts
Kill 500 infected
Find the locations for the secret labs
Drive to 10 locations
Survive an area with 4 Survivors without taking damage
Survive 10 days
Clear a node without losing anyone (4 Survivors)
Kill 30 infected in one area
Use 10 Gadgets
Kill 20 infected with melee weapons
Wield a Katana
Find the Scientist
Destroy the Source
Use a Camera
Kill 5 infected with an Axe
Get to Lab 3 (Death Lab)
Get to Lab 7 (Death Lab)
Clear Lab 10 (Death Lab)
Have 2 Sentry Guns up at once
Survive a Danger Level 5 area
Survive The Great Escape
Find the secret area
Start The Great Escape
DONT DEAD OPEN INSIDE
Get past the first gate
Press the button
Survive the first trap
Get past the lasers
Follow the basic instructions
Uh oh...
HACK THE PLANET!
Grab the Red Keycard
Grab the Mysterious Vial
Grab the Uranium Nugget
Complete The Great Escape within 40 mins
Complete The Great Escape with less than 600 damage taken