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