Earn all trophies
Kill 50 Chimera by detonating their heatstacks in the Single Player Campaign
Successfully complete level 6
Kill Gorrell
Kill the Leviathan
Kill any combination of 18 Impalers or Executioners
Use the secondary fire of each weapon in the Single Player Campaign
Successfully complete level 5
Kill 100 Chimera with headshots in the Single Player Campaign
Kill 1000 Chimera in the Single Player Campaign
Successfully complete level 4
Kill an enemy with every weapon in the Single Player Campaign
Upgrade all weapons in the Single Player Campaign
Successfully complete level 3
Kill an Impaler
Kill 50 Chimera with Riley's axe in the Single Player Campaign
Kill 500 Chimera in the Single Player Campaign
Successfully complete level 2
Kill the Abomination
Kill 250 Chimera in the Single Player Campaign
Upgrade both slots of a weapon in the Single Player Campaign
Successfully complete level 1
Kill an Executioner
Upgrade a weapon in the Single Player Campaign
Complete one round of multiplayer