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