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