It's The Final Countdown Achievement - Generation Zero - Exophase.com

Generation Zero

Xbox One

282,466 Achievements Earned
27,459 Players Tracked
72 Total Achievements
29,210 Obtainable EXP
1,390 Gamerscore
208 100% Club

It's The Final Countdown

Complete all Main Missions.

20

4.07% Ultra Rare - 396.00 EXP

You have not earned this achievement yet