Warhammer 40,000: Dawn of War II
73 Achievements
2,000
Xbox 360
The Challenge Answered
Answer the enemy commander's challenge on Aurelia in Chaos Rising.
50
How to unlock the The Challenge Answered achievement in Warhammer 40,000: Dawn of War II - Definitive Guide
Story related and can not be missed.
Simply beat Arighast on any difficulty and this will pop.