Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
A Humerus Weapon	Kill 10 Ridden with Bob's Arm.	15
Act 1 Cleaner	Complete all Act 1 maps on Nightmare difficulty.	30
Act 1 Recruit	Complete all Act 1 maps on Recruit difficulty or higher.	30
Act 1 Veteran	Complete all Act 1 maps on Veteran difficulty or higher.	30
Act 2 Cleaner	Complete all Act 2 maps on Nightmare difficulty.	30
Act 2 Recruit	Complete all Act 2 maps on Recruit difficulty or higher.	30
Act 2 Veteran	Complete all Act 2 maps on Veteran difficulty or higher.	30
Act 3 Cleaner	Complete all Act 3 maps on Nightmare difficulty.	30
Act 3 Recruit	Complete all Act 3 maps on Recruit difficulty or higher.	30
Act 3 Veteran	Complete all Act 3 maps on Veteran difficulty or higher.	30
Act 4 Cleaner	Complete Act 4 on Nightmare difficulty.	30
Act 4 Recruit	Complete Act 4 on Recruit difficulty or higher.	30
Act 4 Veteran	Complete Act 4 on Veteran difficulty or higher.	30
Apocalypse Pacifist	Complete a map without any players on the team killing a single Ridden.	15
Bell Hop	Find the secret in "Search & Rescue".	15
Bob's Your Uncle	Complete The Armory.	15
Breakfast Can Wait	Complete The Dark Before The Dawn.	15
Breakfest	Kill a Monstrous Breaker after removing all of its armor.	15
Brought a Knife to a Gunfight	Complete a level while getting at least 50 kills with melee weapons.	15
Brute Force	Kill an Ogre with the Howitzer.	15
Cleanup Crew	Complete a mission without any players being incapacitated or killed.	15
Cooped Up	Find the secret in "The Armory".	15
Cryptozoologist	Find the secret in "Job 10:22".	15
Dangerous To Go Alone	Find the secret in "Plan B".	15
Dead Quiet	Complete a map without ever triggering a horde from Reekers, Birds, Snitches, or alarms.	15
Don't Ask...	Rescue a teammate from a cocoon.	15
Don't You Eat My Neighbor	Complete Dr. Rogers' Neighborhood.	15
Down the Drain	Complete Plan B.	15
Down, But Not Out	Kill 15 enemies while downed.	15
Easily Mist	Find the secret in "Blue Dog Hollow".	15
Enemy of Mine	Complete Blue Dog Hollow.	15
Expanding the Arsenal	Spend your first Supply Point.	15
Extra Credit	Find the secret in "Remnants".	15
Good Riddence!	Kill 53,600 Ridden over your career.	15
Grateful Eight	Complete a mission with each Cleaner.	15
Hippocrates Would be Proud	Heal a teammate.	15
Jugger-not	Make a Breaker hurt itself.	15
Jukebox Hero	Defend the jukebox in Bar Room Blitz without it breaking.	15
Mind Your Step	Find the secret in "The Abomination".	15
Nemesis	Safely descend the ladder in the construction zone in Resurgence.	15
Night Of The Living Hedge	Find the secret in "Dr. Rogers' Neighborhood".	15
No Time for a Nap	Revive a fallen teammate.	15
Of Biblical Proportions	Complete Job 10:22.	15
Paid the Toll	Complete The Devil's Return.	15
Pallet Cleanser	Find the secret in "The Dark Before the Dawn".	15
Paved With Good Intestines	Complete Remnants.	15
Port Man Toe?	Find the secret in "The Devil's Return".	15
Share the Load	Drop some ammo for a teammate.	15
Smörgåsbord	Kill at least one of each non-boss Mutation.	15
Snitches Get Stitches	Kill a Snitch without it alerting the horde.	15
Squad Up	Form a party in Fort Hope.	15
Stacked Deck	Have at least 25 cards in play at once.	15
Swarmed	Win a game in Swarm Mode.	15
This Round's On Me	Complete Search & Rescue.	15
Welcome to the Apocalypse	Good luck out there, you're gunna need it.	10