Redeco

Be Yourself Collect all Trophies

Wave Goodbye Survive 5 waves in Horde Mode.

Hardened Trooper Complete a mission on Intense Difficulty.

Reckoning Complete the "Final Endeavor" Campaign.

Legionnaire's Service Medal Complete all Campaigns on Casual or higher difficulty.

The Story of the Quarry Complete the "Ancient Anomaly" Campaign.

Fully Loaded Equip a weapon with all attachments, including an Augment.

Canary Complete the "Rock Bottom" Campaign.

Yellow Makes It Shoot Better Equip a colorway and three decals onto a gun.

Next Top Marine Equip cosmetics on your head, torso and legs.

How Do You See Out Of These Things? Collect 10 hats.
10/10

Worst Party Ever Complete the "Boarding Party" Campaign.

Hell and Back Level a weapon to four stars.

Worthiness Tested Attempt a Challenge run.

Not Just For Decoration Equip at least one attachment on a sidearm.

It's a rescue mission, you'll love it! Complete the "Rescue and Recovery" Campaign.

Welcoming Committee Complete the "Prologue" Campaign.

Plus Plus Complete the game on New Game+

Jiralhanae Conservationist On The Most Dangerous Game don’t kill any rampaging Brutes.

Arm's Length On 343 Guilty Spark complete the first floor without taking a hit.

All Shield, No Yield Complete any level on Heroic difficulty or higher without taking health damage.

Map Quest Complete The Silent Cartographer without shooting, using grenades, melee, dying, or restarting.

Frugal Fire Equip Famine, Recession, and Johnny Ammo Tree Skulls and beat a mission without running out of ammo.

Like Old Times Complete Two Betrayals with the Speed Limit, Endurance Spec, Hip Fire, and Armistice Skulls enabled.

Undersea Struggle Complete Leviathan Attack.

She's Going Down Milo Complete Ulysses.

Milo the Unlikely Beat Whitmore's score.

Go Do Your Father Proud Complete Whitmore's Mansion.

Even Tempered With the Temperamental Skull activated beat Halo without upsetting anyone.

Burn Notice Complete "Rebirth" and "Redemption" on Veteran difficulty.

Tip the scales Complete all main quests on Toshara

Get rhythm Pick 20 locks with the data spike

Hot Streak With the Floor Is Lava Skull activated beat a mission without jumping or dying.

Stay on target Complete your first Intel chain

Give me the good stuff Buy an item from a merchant's VIP stock

Now you see me, now you don't Disable an alarm using a security terminal while the alarm is active

Food Critic Listen to the Thirsty Grunt talk about his eating habits.

This is My Ship Now Eliminate Captain Keyes and trap his six avenging Marines in the Autumn’s observation pen.

Personal Space Complete Heavy Burden.

Parting Gifts Find all skulls and terminals in Heavy Burden.
100/100

Headhunter Collect all 39 Skulls.
100/100

Collector’s Addition Find all skulls and terminals in the game.
100/100

Brute Loops Find all skulls and terminals in The Most Dangerous Game.
100/100

Lore Have Mercy Activate all 13 Terminals.
100/100

Tiger Company Complete The Most Dangerous Game.

Before the Fall Complete Boarding Action.

Souvenirs Find all skulls and terminals in Boarding Action.
100/100

Heroes Never Die Complete the Campaign on Heroic Difficulty.
100/100

Birth of a Spartan Complete the Campaign on Normal Difficulty.
100/100

That’s My Ride On Assault on the Control Room get to the Banshee before the Elite.