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