The Chaos Unleashed Map Pack Add-on for Warhammer 40,000: Space Marine has 9 achievements.
Complete Chaos Invasion Arena 2.
Complete Chaos Invasion Arena 1.
Complete Chaos Invasion Arena 3.
Complete the Chaos Invasion mission.
Defeat the Chaos Invasion bonus wave.
Complete a Chaos Invasion Arena without your team using any lives.
Complete 3 challenges in one Chaos Invasion Arena.
Achieve a team score of higher than 270,000 in the Chaos Invasion mission.
Complete a public Co-op game in the Chaos Invasion mission.