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