Kill 10 enemies in a row using only Gauntlet after obtaining the Revolver

Complete "Elder Knowledge"

Survive the flood

Decipher the Path of the Stars

Complete any Mission in Operations mode on Ruthless Threat Level

Customise a full Armour set for one Class

Defeat the Lord of Change and face a figure from the past

Kill 1,000 Tyranids in Operations mode

Destroy the Chaos warp beacon

Eliminate the Daemonhost and restore vox communication

Kill the Hive Tyrant

Deploy a bomb in the promethium well to destroy the Tyranid swarm