Killed an enemy with melee using a bladed weapon in a matchmade game.

Brought some rescued UNSC Marines along for the ride into a main mission.

Fully upgraded your Energy Shields.

Fought your way through Outpost Tremonius and stepped out onto the surface of Zeta Halo.

Fully upgraded the Drop Wall ability.

Captured all available Forward Operating Bases.

Defeated the Harbinger. Confronted the truth.

Completed the main campaign.

Completed the main campaign on Normal difficulty.

A friend was in danger and time is running out. It's time to face your past and save your future.

At the end he was just a soldier. Hoping he'd done the right thing.

Stormed the House of Reckoning.

Infiltrated the Command Spire and put an end to the Reformation.

Used the Threat Sensor 50 times.

Entered the Nexus and learned the secrets of the Spires. Trust is a fragile thing, isn't it?

Reached the Beacons, assembled the Sequence, and gained access to the Command Spire.

Fully upgraded the Threat Sensor ability.

Fully upgraded the Grappleshot.

Scanned a Forerunner Artifact.

Took down the Spartan Killers Hyperius and Tovarus.

Took down all three Banished AA guns in under 20 minutes.

Destroyed a Banished anti-aircraft gun.

Splattered an enemy with a Ghost.

Shut down the first Spire and stopped Zeta's Reformation.

Defeated the Hunter pair stationed at the base of the Spire.

Used the Grappleshot to board an enemy Ghost.

Unlocked the Thruster ability.

Stuck 50 enemies with grenades.

Unlocked the Drop Wall ability.

Shut down the Banished mining laser and gained access to the Conservatory.

Threw 50 fusion coils.

Took out a Banished Propaganda Tower.

Accessed your first Banished Audio Log.

Discovered your first hidden Skull.

Completed a Banished outpost.

Answered a UNSC distress call.

Accessed your first UNSC Audio Log.

Captured your first Forward Operating Base.

Eliminated a Banished High-Value Target.

Located and secured a Spartan Core.

Successfully used the Grappleshot 50 times.

Followed the UNSC signal to a Banished stronghold called the Tower. Found the source. Got out alive.

Unlocked the Threat Sensor ability.

Accessed your first Mjolnir Armor Locker.

Defeated the Banished warlord Tremonius

Explored the underbelly of Zeta Halo and retrieved a weapon to turn the tide of this conflict.

Lost, and found.

Accessed your first Spartan Audio Log.

Assisted in capturing all zones that lead to a score in a Total Control game.

Completed a Limited Time Challenge.

Finished Ranked Placement Matches.

Completed a Weapon Drill.

Changed your Spartan Tag.

Completed one level in a Battle Pass.

Played a Ranked Match.

Test drove a new vehicle customization.

Earned 2,000 score in a matchmade game.

Completed a Weekly Challenge.

Tried out a new weapon customization item.

Wore a new armor customization item.

Got and equip a new AI.

Changed your Spartan's look in the Customize menu.

Completed a Daily Challenge.