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