Here is the full list of all 50 Earth Defense Force: Insect Armageddon achievements.
Survive 500 (total) waves in Survival mode
Purchase all weapons for all armors
Level up all armors completely
Destroy 10000 Gunships
Collect All Dropped Weapons
Destroy 100 Carriers
Kill 10000 Spiders
Survive 100 (total) waves in Survival mode.
Get 10000 kills in Survival mode
Beat the game on Inferno
Kill 5000 Ticks
Kill 25000 Enemies
Kill 10000 Ants
Get 250 kills with the Lander Turret
Purchase all available weapons for a single armor
Destroy 100 Anthills/Spider Nests
Revive 250 teammates
Destroy 1000 Gunships
Get 500 kills with the Mech
Kill 100 Wasps
Kill 100 Small Hectors
Level up an armor completely
Beat the game on Hard
Kill 10 Mantises
Get 500 kills with the Tank
Destroy 10 Carriers
Kill 5000 enemies
Destroy 500 buildings
Destroy 500 cars/vehicles
Beat the game on Normal
Kill a Queen Ant
Kill 10 Wasps
Get 1000 kills in Survival mode
Kill 10 Bomber Spiders
Make it through 5 Survival Mode Waves in One Session
Get 500 kills with Base Turrets
Kill 10 Small Hectors
Kill a Large Hector
Kill a Mantis
Kill 1000 Ants
Destroy 500 world objects
Kill a Daddy Long Legs
Destroy 100 Gunships
Kill 100 Spiders
Kill 100 Ticks
Destroy 10 Anthills/Spider Nests
Unlock all armors
Incapacitate a teammate
Revive a teammate
Kill 100 Ants