Here is the full list of all 53 Depth of Extinction achievements.
Kill 10 of the bad guys.
Kill 100 of the bad guys.
Kill 1000 of the bad guys.
Kill 3 or more enemies in a mission with a single character
Get ten hat tricks
Get 100 hat tricks
Lose your first character in battle.
Lose ten characters in battle.
Unlock the Deadeye class.
Unlock the Assault class
Unlock the Wildcat class
Unlock the Saboteur class.
Unlock the Soldier class.
Unlock the Warden class.
Unlock the Wrecker class.
Max a character's Deadeye class stat.
Max a character's Assault class stat.
Max a character's Wildcat class stat.
Max a character's Saboteur class stat.
Max a character's Soldier class stat.
Max a character's Warden class stat.
Max a character's Wrecker class stat.
Max a character's Constitution stat.
Max a character's Awareness stat.
Max a character's Reaction stat.
Max a character's Speed stat.
Max a character's Grit stat.
Win 10 missions
Win 50 Missions
Win 100 Missions
Deal 100 damage
Deal 1000 damage
Deal 5000 damage
Complete the tutorial.
Complete an objective while having only one team member left alive.
Unlock the Swashbuckler class.
Send only one character on a mission and succeed.
Unlock the Butcher class.
Free a Slave
Max a character's Swashbuckler class stat.
Max a character's Butcher class stat.
Finish the Code Scrambler objective
Finish the Skull of the First objective
Finish the The All-Seeing Eye objective
Finish the The Greatest of Minds objective
Finish the A Final Chance objective
Find the Plasma Rifle
Find the Fusion Sniper
Find the Plasma Launcher
Find the medical sub
Find the transport sub
Find the medical transport sub
Find the large transport sub