Get at least one kill with every available weapon and grenade on the Banished ship.
Defeat Tremonius with the Skewer.
Destroy both Phantoms before they leave Outpost Tremonius.
Kill the Tower commander with a Plasma grenade.
Kill an enemy with the Banished mining laser.
Complete the Conservatory in less than 15 minutes.
Eliminate all enemies at the South Beacon with a Scorpion Tank.
In the Nexus, kill the Hunter pair with melee final blows.
In co-op, kill 100 enemies while all players are riding air vehicles.
In co-op, splatter 50 enemies while riding in a vehicle with another player.
In co-op, kill 50 enemies while riding a Mongoose with another player.
Kill 5 enemies with a Sniper Rifle from a vehicle. All players aboard vehicle share progress.
Kill 5 enemies with a Gravity Hammer from a vehicle. All players aboard vehicle share progress.
In co-op, kill a Hunter and its bond brother within three seconds of each other.
In co-op, destroy all cooling towers at the Dig Site within 60 seconds of each other.
In co-op, destroy four Fuel Silos within five seconds at either Ransom Keep or the Forge of Teash.
In co-op, lower all three gates within 15 seconds of each other at Riven Gate.
Kill 40 enemies with the Stalker Rifle at the Command Spire.
Kill one Chieftain and use his turret to kill another in the Repository.
Defeat War Chief Escharum without ever fully losing your shields.
Breach the Auditorium in under three minutes.
In co-op, capture all Forward Operating Bases on any difficulty.
In co-op, complete all seven Banished outposts on any difficulty.
In co-op, answer all UNSC distress calls on any difficulty.
In co-op, eliminate all Banished High-Value Targets on any difficulty.
Complete the main campaign.
Capture all available Forward Operating Bases.
Unlock all Spartan Audio Logs.
Check out the best possible view.
Access your first Banished Audio Log.
Use the Thruster 50 times.
Kill an enemy with the Ravager's charged shot in a matchmade game.
"Grapplejack" an enemy flying vehicle in a matchmade game.
Place an item in the Razorback's storage in a matchmade game.
Capture the flag twice in a matchmade Capture the Flag game.
Earn a Mythic Medal in a matchmade game.
Take out a Banished Propaganda Tower.
"Back Smack" an enemy who is zoomed in with a scoped weapon in a matchmade game.
Kill a Grunt that's been thrown by a Brute.
Wear a new armor customization item.
Earn "Mount Up" in a Razorback in a matchmade game.
Complete a Banished outpost.
Mark an enemy located at "Top Mid" in a matchmade game.
Capture your first Forward Operating Base.
Fully upgrade the Grappleshot.
Change your Spartan Tag.
Successfully use the Grappleshot 50 times.
Test drive a new vehicle customization.
Splatter an enemy with a Ghost.
Spectate an ally that is driving a Warthog or Razorback in a matchmade game.
Deposit 5 Power Seeds in a matchmade Stockpile game.
Unlock the Threat Sensor ability.
Destroy 40 Banished Propaganda Towers.
Drive 4 unique vehicles in a matchmade game.
Answer all UNSC distress calls.
Gain access to a loot cave in a matchmade game.
Earn "Perfect" with a VK78 Commando in a matchmade game.
Acquire all Spartan Cores.
Access your first Mjolnir Armor Locker.
Discover your first hidden Skull.
Complete a Limited Time Challenge.
Revive 3 allies in an Attrition/Elimination round in a matchmade or custom game.
Grab a power weapon from the Tutorial armory.
Throw 50 fusion coils.
Complete a Weekly Challenge.
Bring some rescued UNSC Marines along for the ride into a main mission.
Stick 50 enemies with grenades.
Earn "Chain Reaction" with a Shock Rifle in a matchmade game.
Complete all Valor-awarding activities.
Answer a UNSC distress call.
Use the Grappleshot to board an enemy Ghost.
Get and equip a new AI.
Unlock the Drop Wall ability.
Fully upgrade the Thruster ability.
Play a Ranked Match.
Secure 5 zones in a matchmade Strongholds game.
Complete all main missions on Legendary with all Skulls active.
Fully upgrade the Drop Wall ability.
Unlock all Banished Audio Logs.
Access your first Spartan Audio Log.
Locate and secure a Spartan Core.
Fully upgrade your Energy Shields.
Scan all seven Forerunner Artifacts.
Take down all three Banished AA guns.
Eliminate a Banished High-Value Target.
Change your Spartan's look in the Customize menu.
Complete one level in a Battle Pass.
View a clip in theater.
Destroy an enemy vehicle with the Skewer in a matchmade game.
Complete all main campaign missions on Heroic difficulty.
Unlock the Thruster ability.
Scan a Forerunner Artifact.
Complete all 14 main missions in under eight hours.
Drop a Power Weapon for an ally in a matchmade game.
Mark 3+ enemies at once in a matchmade game.
Pick up a weapon using the Grappleshot in a matchmade game.
Complete the main campaign on Normal difficulty.
Fully upgrade the Threat Sensor ability.
Complete all seven Banished outposts.
Discover all hidden Skulls.
Eliminate all 15 Banished High-Value Targets.
Access your first UNSC Audio Log.
Unlock all UNSC Audio Logs.
Complete a Battle Pass.
Complete a Daily Challenge.
Play a custom game.
Get the Scorpion all the way to the "House" without it blowing up.
Earn 3 stars in a Weapon Drill.
Kill an enemy with melee using a bladed weapon in a matchmade game.
Repel an enemy grenade with the Repulsor in a matchmade game.
Assist in capturing all zones that lead to a score in a matchmade Total Control game.
Change any training mode option.
Launch into Training Mode for the first time.
Complete a Weapon Drill.
Access all 34 Mjolnir Armor Lockers.
Deploy the Drop Wall 50 times.
Use the Threat Sensor 50 times.
Try out a new weapon customization item.
Finished Ranked Placement Matches.
Complete all main campaign missions on Legendary difficulty.
Earn 3 stars in 5 Tier 3 Weapon Drills.
Kill three enemies with the ball in a matchmade Oddball game.
Earn "Splatter" with a Brute Chopper in a matchmade game.
Earn 2,000 score in a matchmade game.
Complete the Tutorial.
Access your Personal AI.
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