Anthem
46 Achievements
EA Play
Return to the Heart of Rage
Complete Return to the Heart of Rage. Details for this achievement will be revealed once unlocked
How to unlock the Return to the Heart of Rage achievement in Anthem - Definitive Guide
This is story related, and is the final mission of the main story.
Simply complete the final story mission. I have noticed that if you have any other contract or mission on your map then you have to complete it first. Once that is done, make sure your mission goal is "Talk to Haluk" and it should allow you to enter the final mission.