Here is the full list of all 51 EARTH DEFENSE FORCE 4.1 The Shadow of New Despair achievements.
Cleared all stages on Hardest difficulty as a Ranger.
Destroyed 200 large transport ships.
Destroyed 30 Erginuses.
Destroyed 5000 flying drones.
Cleared all stages on Normal difficulty as a Wing Diver.
Destroyed 20 Argos.
Defeated 360 Retiarii.
Defeated 200 Deroys.
Wing Diver's health has reached 550.
Destroyed 6 motherships.
Defeated 120 shield bearers.
Destroyed 12 quadruped fortresses.
Cleared all stages on Hard difficulty as a Ranger.
Defeated 40 king spiders.
Defeated 24 queens.
Destroyed 900 Hectors.
Defeated 12,000 spider-type bugs.
Defeated 24 death queens.
Defeated 4000 flying-type bugs.
Destroyed 6 flying-type bug nests.
Destroyed 2000 flying vehicles.
Defeated 20,000 ant-type bugs.
Destroyed 200 underground tunnel exits.
Cleared all stages on Normal difficulty as a Ranger.
Rescued 50 other players in co-op play.
Defeated 2400 Dragons.
Ranger's health has reached 1000.
Obtained 10% of all available weapons.
Rescued 5 other players in co-op play.
Healed another player in co-op play.
Reached a height of 200 meters.
Cleared all stages on Inferno difficulty as a Ranger.
Cleared all stages on Hard difficulty as a Wing Diver.
Cleared all stages on Hardest difficulty as a Wing Diver.
Cleared all stages on Inferno difficulty as a Wing Diver.
Cleared all stages on Normal difficulty as an Air Raider.
Cleared all stages on Hard difficulty as an Air Raider.
Cleared all stages on Hardest difficulty as an Air Raider.
Cleared all stages on Inferno difficulty as an Air Raider.
Cleared all stages on Normal difficulty as a Fencer.
Cleared all stages on Hard difficulty as a Fencer.
Cleared all stages on Hardest difficulty as a Fencer.
Cleared all stages on Inferno difficulty as a Fencer.
Obtained 50% of all available weapons.
Obtained all available weapons.
Destroyed 500 carriers.
Destroyed 150 red drones.
Defeated 20 Greater Wild Dragons.
Destroyed 6 Brains.
Air Raider's health has reached 1000.
Fencer's health has reached 1250.