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