Kill a Broodlord
Complete the Command branch
Find all the major relics in the main campaign
Kill a stalker-strain Genestealer
Finish a chapter in the main campaign without using a Psygate
Unlock all of the Apothecary's abilities in multiplayer
Unlock all of the Librarian's capacities in multiplayer
Kill a warrior-strain Genestealer
Perform 1,111 assists in multiplayer mode or the special missions
Kill 666 enemies
Complete the Psy branch
Learn Inferno
Destroy a door aboard the Olethros
Unlock all Tactical Terminator abilities in multiplayer
Kill 10,000 enemies
Use the Psygate
Kill a scythe-strain Genestealer
Unlock all Assault Terminator's abilitiess in multiplayer
Learn Vortex of Doom
Kill an hybrid psyker
Unlock all of the Heavy Weapon Support's abilities in multiplayer
Lock a door aboard the Olethros
Complete the Devotion branch