Cowni

Three the hard way Finish the game with at least 300 yards passing and no interceptions.

Down but not out Win a game where you were behind at the start of the fourth quarter.

Just One More Pick up all the blast shards scattered around New Marais.

Shardcore Pick up 50% of blast shards scattered around New Marais.

Level Up Create a new mission using the UGC level editor.

Watch That First Step Defeat an enemy by destroying the object they stand on.

First Flight Complete a flight in any game mode.

Welcome to the Club Reach Sergeant (Level 10) in multiplayer Public Match.

Paper or plastic With your defense record four sacks on the opposing quarterback.

Flawless Victory Win a game holding your opponent to zero.

Green Light Grab Green catch timing on a pass for TD within the End Zone.

MYTHIC Complete the Campaign with LASO enabled.
100/100

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

Living Legend Complete the Campaign on Legendary Difficulty.
100/100

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

Clean Lap On The Maw complete the warthog run without being forcibly ejected from your vehicle.

Personal Space Complete Heavy Burden.

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

Lore Have Mercy Activate all 13 Terminals.
100/100

Bad Gas Destroy 100 Grunt backpacks.
100/100

Tiger Company Complete The Most Dangerous Game.

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

Before the Fall Complete Boarding Action.

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

Dust & Echoes Evolved Complete The Maw.

Greenhorn Complete the Campaign on Easy Difficulty.
100/100

No Rush Find all skulls and terminals in The Maw.
100/100

Captain’s Orders Complete Keyes.

Double Trouble Complete Two Betrayals.

Outpost Discoveries Find all skulls and terminals in Two Betrayals.
100/100

Protocol Dictates Action Complete The Library.

Timeless Tomes Find all skulls and terminals in The Library.
100/100

Making a Necklace Collect 22 Skulls.
100/100

This Stuff is Your History Complete 343 Guilty Spark.

Proto Gravemind Find all skulls and terminals in 343 Guilty Spark.
100/100

Control Alt Delete Complete Assault on the Control Room.

Stowed in Snow Find all skulls and terminals in Assault on the Control Room.
100/100

Plate Tectonics Break off 25 Hunter backplates.
100/100

Claims Adjuster Break off 50 Vehicle parts.
100/100

Bee Thirty Complete Silent Cartographer.

Buried Treasure Find all skulls and terminals in Silent Cartographer.
100/100

Infiltration Anticipation Complete Truth and Reconciliation.

Disarmed Dismember 100 Flood parts.
100/100

Make Them Count Kill 100 enemies with headshots.
100/100

Installation 04 Complete Halo.

Successful Search Find all skulls and terminals in Halo.
100/100

REMIX! Complete a Remixed Mission.

Beat the Drop Complete a Remixed Mission without dying.

The Autumn Leaves Complete Pillar of Autumn.

Clean Sweep Find all skulls and terminals in Pillar of Autumn.
100/100