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