Destroy 100 blast roots

Kill 50 enemies with the Bullseye or Marksman while moving, without using zoom

Use the Atomizer secondary fire to kill 30 enemies

Make Santa and his reindeer fly

Kill 5 Longlegs in mid-jump

Made it to the Extraction Point in Co-op mode

Destroyed every destructible weapon on the MAWLR while on foot and on the Intruder

Killed 1000 Helghast

Killed 40 or more Helghast foot soldiers on the beach

Killed 5 Helghast at once using the secondary fire mode of the WASP launcher

Shot and killed 3 Helghast using the Shotgun Pistol without reloading or switching weapons

Killed 50 Helghast using Brutal Melee

Destroyed Stahl's Cruiser and left the planet on any difficulty