Achievements:
Award Winner
Objective: Bonus multiplier reached 10
Rookie
Objective: Kill 10 mutants
Don't get hurt!
Objective: Bonus multiplier reached 50
Factory
Objective: Finish the map Factory
Elite Killer
Objective: Bonus multiplier reached 100
Depot
Objective: Finish the map Depot
Village
Objective: Finish the map Village
Amorer
Objective: Upgrade the assault rifle to the max in the campaign
RIP
Objective: Died 10x
Harbor
Objective: Finish the map Harbor
Self-made Millionaire
Objective: Pickup 21 money packs
Town
Objective: Finish the map Town
Speedrun
Objective: Finish a mission in less than 12 minutes
Airport
Objective: Finish the map Airport
Skilled
Objective: Kill 1000 mutants
Highway
Objective: Finish the map Highway
Military Base
Objective: Finish the map Military Base
Junk Yard
Objective: Finish the map Junk Yard
Normal
Objective: Finish the campaign in Normal
Grenadier
Objective: Purchase all grenade types in the campaign
Easy
Objective: Finish the campaign in Easy
Arsenal
Objective: Purchase all weapons in the campaign
Immortal
Objective: Finish one mission in difficulty hard without being killed
Stay lying down
Objective: Died 50x
Hard
Objective: Finish the campaign in Hard
Expert
Objective: Kill 5000 mutants
Specialist
Objective: Kill 10000 mutants
Insane!
Objective: Finish the campaign in Insane