Halo 5: Guardians has 65 achievements worth a total of 1000 gamerscore.
There are 44 solo campaign, 6 Co-Op campaign, 8 Matchmaking and 7 miscellaneous achievements.
10G Into the Fire
Complete Mission 1.
10G Argent Moon
Complete Mission 2.
Complete Mission 3.
10G Roots of the Earth
Complete Mission 4.
10G Stolen Gauntlet
Complete Mission 5.
Complete Mission 6.
10G Together Again
Complete Mission 7.
10G Old Bones
Complete Mission 8.
10G Old Bones
Complete Mission 9.
Complete Mission 10.
Complete Mission 11.
10G Civil War
Complete Mission 12.
Complete Mission 13.
10G A New Dawn
Complete Mission 14.
Complete Mission 15.
Complete every Mission of the game on Normal difficulty.
40G Heroes Rise
Complete every Mission of the game on Heroic difficulty.
60G Forging a Legend
Complete every Mission of the game on Legendary difficulty.
100G Lone Wolf
Complete every Mission of the game on Legendary difficulty, by yourself.
20G My Rules
Complete any Mission on Heroic with 3+ Skulls active.
10G Conspiracy Theory
Find and claim one piece of Intel.
40G Hunt the Truth
Find and claim all Intel.
Find and claim a Skull.
Find and claim all Skulls.
10G Your Team is Your Weapon
Command your team of Spartans in Osiris.
10G Enemy of my Enemy
Help the Elite General charge the hill in Osiris on Heroic difficulty.
10G I Thought I’d Lost You
Escape the Hunters in the lab and fight them in the hangar in Blue Team.
10G Going the Distance
Complete Glassed without entering a vehicle.
10G Waiting on You
Kill an enemy that’s had its armor repaired in Unconfirmed.
Keep 6 miners alive at the elevator in Evacuation on Heroic difficulty.
10G Fire Drill
Finish Evacuation within 18:00 without dying on Heroic difficulty.
10G Take a Hike
Traverse the canyon in Reunion without a Phaeton on Heroic difficulty.
10G No Witnesses
Destroy the Phantom at the Covenant camp in Reunion on Heroic difficulty.
10G No Knock Raid
Destroy 10 walls or floors in Swords of Sanghelios.
10G Kraken Lackin’
Complete Enemy Lines without destroying a Kraken turret.
10G Emergency Boarding Procedures
Escape the doomed Kraken by jumping onto a Phaeton piloted by a Spartan.
10G Death from Above
Kill a Grunt and smash a grate with a Ground Pound in Battle of Sunaion.
10G Worms Don’t Surf
Knock two Hunters into the ocean during the Battle of Sunaion.
10G Tank Still Beats Everything
Finish the 13th mission without losing the Scorpion on Legendary difficulty.
10G Rolling Thunder
Operate four different vehicles at once in Mission 13 on Heroic difficulty.
Complete The Breaking on Legendary difficulty without the entire fireteam dying.
10G Prison Break
Simultaneously kill two Wardens in The Breaking on Heroic difficulty.
10G Icy Cool
Ground Pound an exterior power core in Guardians on Heroic difficulty.
10G Double Stuff
Simultaneously destroy 2 cores in Guardians on Heroic difficulty.
10G One for All
Complete any co-op Mission on Heroic difficulty.
40G All for One
Complete every co-op Mission on Heroic difficulty.
10G On My Mark
Simultaneously Assassinate two Elites in Blue Team co-op.
10G Shoot from the Hip
Complete Glassed co-op without any players using Smart-Link.
Team up in a vehicle to kill 30 enemies in Unconfirmed co-op.
10G Preying Mantis
Complete Swords of Sanghelios co-op with both Mantises on Heroic difficulty.
30G Top of the Food Chain
Kill a Warzone Legendary Boss.
10G Cry Havok
Complete 3 Warzone matchmade games.
Win a match on the three original Warzone maps.
20G Castle Crasher
Complete 5 Stronghold matchmade games.
20G Off to the Races
Complete 5 Breakout matchmade games.
20G Flag Monger
Complete 5 Capture the Flag matchmade games.
20G Spartan Decimation
Complete 5 Slayer matchmade games.
20G Valor Recognized
Qualify for a Competitive Skill Rating.
10G Bringing in the Big Guns
Call in a REQ that costs 5 Energy or more.
10G Go for the Gold
Open a Gold REQ Pack
10G Your Style
Change your Spartan’s gear in the Spartan Hub.
10G Raise Your Banner
Change your Emblem in the Spartan ID card.
10G Make Your Mark
Change your Service Tag in the Spartan ID card.
Create and save a Custom Game Type in War Games.
Spectate a game.