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