Warhammer 40,000: Dawn of War II
73 Achievements
2,000
Xbox 360
Allies to the Cause
Complete a mission in Co-Op mode in Dawn of War II.
10
How to unlock the Allies to the Cause achievement in Warhammer 40,000: Dawn of War II - Definitive Guide
Eternal, Hybridchld
Start a cooperative mission by inviting a friend at the Campaign main menu. You will control two squads while your friend controls another two (with inverted colors to distinguish). Complete one mission to unlock this.
