Defeated Tremonius with the Skewer.
Completed all main missions on Legendary with all Skulls active.
Completed a Battle Pass.
Unlocked all Spartan Audio Logs.
Picked up a weapon using the Grappleshot in a matchmade game.
Completed a Limited Time Challenge.
Discovered all hidden Skulls.
Brought some rescued UNSC Marines along for the ride into a main mission.
Completed all main campaign missions on Legendary difficulty.
Completed all 14 main missions in under eight hours.
Unlocked all UNSC Audio Logs.
Defeated the Harbinger. Confronted the truth.
Completed all main campaign missions on Heroic difficulty.
Completed the main campaign.
Completed the main campaign on Normal difficulty.
Completed all Valor-awarding activities.
At the end he was just a soldier. Hoping he'd done the right thing.
Unlocked all Banished Audio Logs.
Stormed the House of Reckoning.
A friend was in danger and time is running out. It's time to face your past and save your future.
Marked an enemy located at "Top Mid" in a matchmade game.
Infiltrated the Command Spire and put an end to the Reformation.
Entered the Nexus and learned the secrets of the Spires. Trust is a fragile thing, isn't it?
Spectated an ally that is driving a Warthog or Razorback in a matchmade game.
Fully upgraded the Threat Sensor ability.
Reached the Beacons, assembled the Sequence, and gained access to the Command Spire.
Acquired all Spartan Cores.
Accessed all 34 Mjolnir Armor Lockers.
Destroyed 40 Banished Propaganda Towers.
Completed all seven Banished outposts.
Eliminated all 15 Banished High-Value Targets.
Scanned all seven Forerunner Artifacts.
Captured all available Forward Operating Bases.
Deployed the Drop Wall 50 times.
Used the Threat Sensor 50 times.
Used the Thruster 50 times.
Fully upgraded the Thruster ability.
Answered all UNSC distress calls.
Took down the Spartan Killers Hyperius and Tovarus.
Took down all three Banished AA guns in under 20 minutes.
Fully upgraded the Drop Wall ability.
Secured 5 zones in a Strongholds game in a matchmade game.
"Grapplejacked" an enemy flying vehicle in a matchmade game.
Killed an enemy with melee using a bladed weapon in a matchmade game.
Destroyed a Banished anti-aircraft gun.
Shut down the first Spire and stopped Zeta's Reformation.
Defeated the Hunter pair stationed at the base of the Spire.
Unlocked the Thruster ability.
Unlocked the Drop Wall ability.
Shut down the Banished mining laser and gained access to the Conservatory.
Checked out the best possible view.
Discovered your first hidden Skull.
Stuck 50 enemies with grenades.
Used the Grappleshot to board an enemy Ghost.
Located and secured a Spartan Core.
Fully upgraded your Energy Shields.
Scanned a Forerunner Artifact.
Took out a Banished Propaganda Tower.
Threw 50 fusion coils.
Accessed your first Mjolnir Armor Locker.
Completed a Banished outpost.
Captured your first Forward Operating Base.
Answered a UNSC distress call.
Eliminated a Banished High-Value Target.
Fully upgraded the Grappleshot.
Followed the UNSC signal to a Banished stronghold called the Tower. Found the source. Got out alive.
Unlocked the Threat Sensor ability.
Splattered an enemy with a Ghost.
Fought your way through Outpost Tremonius and stepped out onto the surface of Zeta Halo.
Defeated the Banished warlord Tremonius
Accessed your first UNSC Audio Log.
Explored the underbelly of Zeta Halo and retrieved a weapon to turn the tide of this conflict.
Lost, and found.
Successfully used the Grappleshot 50 times.
Accessed your first Banished Audio Log.
Accessed your first Spartan Audio Log.
Killed three enemies with the ball in an Oddball game in a matchmade game.
Captured the flag twice in a Capture the Flag game in a matchmade game.
Marked 3+ enemies at once in a matchmade game.
Changed any training mode option.
Earned 3 stars in a Weapon Drill.
Completed the Tutorial.
Accessed your Personal AI.
Destroyed an enemy vehicle with the Skewer in a matchmade game.
Deposited 5 Power Seeds in a Stockpile game in a matchmade game.
Gained access to a loot cave in a matchmade game.
"Back Smacked" an enemy who was zoomed in with a scoped weapon in a matchmade game.
Completed a Weapon Drill.
Completed one level in a Battle Pass.
Earned 2,000 score in a matchmade game.
Wore a new armor customization item.
Assisted in capturing all zones that lead to a score in a Total Control game.
Completed a Weekly Challenge.
Earned a Mythic Medal in a matchmade game.
Viewed a clip in theater.
Earned "Splatter" with a Brute Chopper in a matchmade game.
Drove 4 unique vehicles in a game
Completed a Daily Challenge.
Tried out a new weapon customization item.
Test drove a new vehicle customization.
Got and equip a new AI.
Changed your Spartan's look in the Customize menu.
Changed your Spartan Tag.
Launched into Training Mode for the first time.
Killed an enemy with the Ravager's charged shot in a matchmade game.
Placed an item in the Razorback's storage in a matchmade game.
Repelled an enemy grenade with the Repulsor in a matchmade game.
Dropped a Power Weapon for an ally in a matchmade game.
Revived 3 allies in an Attrition/Elimination round in a matchmade or custom game.
Got at least one kill with every available weapon and grenade on the Banished ship.
Destroyed both Phantoms before they left Outpost Tremonius.
Killed the Tower commander with a Plasma grenade.
Killed an enemy with the Banished mining laser.
Completed the Conservatory in less than 15 minutes.
Eliminated all enemies at the South Beacon with a Scorpion Tank.
In the Nexus, killed the Hunter pair with melee final blows.
Killed 40 enemies with the Stalker Rifle at the Command Spire.
Killed one Chieftain and used his turret to kill another in the Repository.
Defeated War Chief Escharum without ever fully losing your shields.
Breached the Auditorium in under three minutes.
In co-op, captured all Forward Operating Bases on any difficulty.
In co-op, completed all seven Banished outposts on any difficulty.
In co-op, answered all UNSC distress calls on any difficulty.
In co-op, eliminated all Banished High-Value Targets on any difficulty.
In co-op, killed 100 enemies while all players are riding air vehicles.
In co-op, splattered 50 enemies while riding in a vehicle with another player.
In co-op, killed 50 enemies while riding a Mongoose with another player.
Killed 5 enemies with a Sniper Rifle from a vehicle. All players aboard vehicle share progress.
Killed 5 enemies with a Gravity Hammer from a vehicle. All players aboard vehicle share progress.
In co-op, killed a Hunter and its bond brother within three seconds of each other.
In co-op, destroyed all cooling towers at the Dig Site within 60 seconds of each other.
In co-op, destroyed four Fuel Silos within five seconds at either Ransom Keep or the Forge of Teash.
In co-op, lowered all three gates within 15 seconds of each other at Riven Gate.
Killed a Grunt that's been thrown by a Brute.
Got the Scorpion all the way to the "House" without it blowing up.
Played a Ranked Match.
Finished Ranked Placement Matches.
Played a custom game.
Earned 3 stars in 5 Tier 3 Weapon Drills
Grabbed a power weapon from the Tutorial armory.
Completed the Movement Yard in under 25 seconds.
Earned "Perfect" with a VK78 Commando in a matchmade game.
Earned "Mount Up" in a Razorback in a matchmade game.
Earned "Chain Reaction" with a Shock Rifle in a matchmade game.