Here is the full list of all 43 Door Kickers achievements. It takes around 25-30 hours to unlock all of the achievements on Windows.
Have your entire team killed at roughly the same time after unpausing the game, within seconds of mission start.
Have a squad of fully leveled up troopers.
Unlock all equipment / weapons.
Get three stars in all Single Missions.
Win a campaign in Iron Man Mode.
Breach 400 doors.
Defuse 100 bombs.
Arrest 100 enemies.
Get two stars in every Single Mission.
Get one star in every Single Mission.
Fully complete campaign "Suits and Ski-Masks"
Level-up a trooper to maximum level.
Defuse a bomb with less then 1 second left.
Fully complete campaign "The Cell"
Get 30 Perfect Plan Medals.
Get 30 One Man Army Medals.
Get 30 No Pause Medals.
Complete 150 missions.
Fully complete campaign "Terror at Sea"
Fully complete campaign "Drug Bust"
Fire a total of 10000 rounds.
Level-up your squad to maximum level.
Walk total 10000 meters.
Defuse your first bomb
Unlock all playable classes
Hit 5 enemies with the same Flashbang.
Kill 1000 enemies.
Kill 10 bad guys within 5 seconds, without letting them fire a shot.
Get 50 stars
Fully complete campaign "A Hard Day's Work"
Unlock the Breacher class
Complete a mission arresting 6 or more bad guys and without killing any.
Have a shield unit kill three enemies without moving.
Handcuff your first bad guy
Unlock the Shield Class
Save your first hostage
Get 13 stars
Get your first One Man Army Medal
Get a 3 star result as an "improved result" on a mission
Unlock the Assaulter class
Complete 10 missions
Get your first Perfect Plan Medal
Get your first No Pause Medal