Here is the full list of all 18 Iron Grip: Warlord achievements.
Empty an entire 250 round HMG magazine and hit an enemy with every shot. You can redeploy between firing. Vehicles don’t count!
Kill 1000 infantry units without dying in a single round (kills by your turrets and traps count too!)
Kill 500 infantry units without dying in a single round.
Kill 100 infantry units without dying in a single round.
Collect jewelry worth 2000 points in a single round.
Take out 25 enemies with the knife in a single round.
Take down 20 vehicles in a single round (kills by your turrets and traps count too!)
Earn 5000 power from civilian casualties in a single round.
Earn 3000 power from civilian casualties in a single round.
Own every available weapon and upgrade, and get at least one kill with every weapon, all in a single round (including the officer’s chaingun, but not dynamite or the suicide vest).
Kill the Officer 5 times in a single round (kills by your turrets and traps count too!)
Own every purchasable weapon at the same time.
Own every purchasable weapon and upgrade at the same time.
Rebuild the stronghold.
Heal 200 points of your teammates’ health in a single round.
Earn 1000 power from civilian casualties in a single round.
Achieve the top score in a multiplayer round with 3 or more human players (win or lose).
Win a round without any stronghold taking damage.