Full list of all 28 Metal: Hellsinger achievements worth 1,000 gamerscore. It takes around 6-8 hours to unlock all of the achievements on Xbox Series X|S.
Killed a Judge's Aspect with Terminus
Destroyed the Red Judge
Died 20 times
Died in a Chaos Crystal explosion
Killed two Seraphs in one attack
Cleared a Hell using only Paz
Reached Hit Streak: 50
Reached Hit Streak: 35
Never hit off-beat in a Hell
Killed 25 enemies while maintaining a Hit Streak
Completed all Torments
Destroyed the Red Judge aspect in Acheron
Destroyed the Red Judge aspect in Nihil
Soared (Dash + jump) 100 times
Destroyed the Red Judge aspect in Gehenna
Destroyed the Red Judge aspect in Incaustis
Obtained all weapons
Destroyed the Red Judge aspect in Yhelm
Reached Hit Streak: 20
Killed 50 Behemoths
Got 666 kills (game total)
Killed 8 enemies in 4 seconds
Achieved the top result in a Torment
Completed a Torment
Destroyed the Red Judge aspect in Stygia
Destroyed the Red Judge aspect in Voke
Reached Hit Streak: 10
Multi-killed 2 enemies