Achievements:
Achievement - How to unlock
Bloodbath - Achieve a "Bloodbath" Kill streak.
Chapter Brother - Complete a mission in co-op mode.
Chapter Master - Play through each mission with two different Space Marines.
Devastator - Complete a mission without using melee.
Emperors Champion - Earn a gold Aquila in every survival challenge.
Exterminatus - Kill 5000 enemies in total.
For the Emperor - Get over 50 kills with each weapon type.
Honour in My Shield - Complete a mission without dying.
Master Your Craft - Use a special move.
Relic Bearer - Find all the collectables.
Tactical - Unlock all weapons and ability upgrades.
Victory for the Chapter - Defeat the Warboss!