Here is the full list of all 51 Door Kickers: Action Squad achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Successfully complete all missions in Chapter 5
3-Star all missions in Chapter 5
Use sniper support to kill 1000 enemies
Resurrect another player 5 times in the same mission
Use 5 extra lives in the same mission
Collect all 20 secret items
Disarm 30 bombs
Make 5 VIP Arrests
3-Star all missions in Chapter 4
3-Star all missions in Chapter 3
Kick Open 1000 Doors
Successfully complete all missions in Chapter 4
Rescue 1000 hostages
Rescue 50 Wounded Policemen
Blow Open 100 Doors
Successfully complete all missions in Chapter 3
Kill 3 enemies with one breaching charge
Kill 3 enemies by blowing up one barrel
Kill 50 Hostages
Kill yourself with your own explosives
Use sniper support to kill 100 enemies
Get 100 kills as Recon
Set 20 enemies on fire
Get 100 kills as Agent Fergie
Stun 500 enemies
Unlock Chapter 5
3-Star all missions in Chapter 2
Successfully complete all missions in Chapter 2
Get 100 kills as Breacher
Win one mission in Coop
Unlock Chapter 4
Complete a level without taking any damage whatsoever
3-Star all missions in Chapter 1
Kill 1000 bad guys
Successfully complete all missions in Chapter 1
Unlock Chapter 3
Kick Open 100 Doors
Collect your first secret item
Unlock Chapter 2
Kill an enemy with an elevator
Get 100 kills as Assaulter
Get 100 kills as Shield
Rescue 50 hostages
Kill 50 bad guys
Get 3 stars in a mission