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