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