Liberate 3 outposts.

Lure and kill a predator.

Return to the doctor with the cave mushrooms.

Single Player: Find and destroy a Janus emblem.

Get hit in the head by a rock from an Ewok on Endor

Kill 150 enemies while using Power Ups

Complete the campaign on 'I'm Too Young to Die', 'Hurt Me Plenty', 'Ultra Violence', or 'Nightmare'.

Earn the Mastery for a weapon mod

Fully upgrade Health, Armor, or Ammo capacity

Kill 50 enemies using the Chainsaw

Acquire the BFG

Glory Kill all common enemy types in the campaign.