License to Kill

Anniversary: Ran over 5 people with a vehicle in a matchmade game.

Top Shot

Anniversary: Earned 3 headshots in a row in a matchmade game.

If They Came to Hear Me Beg

Performed an Assassination against an Elite to survive a fall that would've been fatal.

Cross-Mappin'

Noble 1: Killed a player at long range with the DMR in a matchmade Slayer game.

One Down, 51 to Go

Completed a Weekly Challenge.

A New Challenger

Completed all of the Daily Challenges in a given day.

Knife to a Gunfight

As an Elite, killed 5 Spartan players in Matchmaking.

Gods Must Be Strong

Completed the Campaign on Legendary difficulty.

Both Barrels

Noble 1: Earned a Double Kill with the shotgun in multiplayer Matchmaking.

Cool File, Bro

Recommended a file to someone.

Lemme Upgrade Ya

Advanced a Commendation to a Silver state.

Return to Sender

Defiant: Returned two flags in a matchmade CTF game.

Totally Worth It

Noble 1: Earned a Double Kill from the Grave in multiplayer Matchmaking.

Be My Wingman, Anytime

Let a teammate spawn on you 5 times in an Invasion Matchmaking game.

You Blew It Up!

Noble 1: Your team blew up the research facility in a matchmade Invasion game on Breakpoint.

Skunked!

Won a game of Invasion in the 1st phase.

Poppin' & Lockin'

Noble 1: Destroyed a vehicle using Armor Lock in a matchmade game.

Score Attack

Scored 15,000 points in Score Attack Firefight Matchmaking.

What's a Killing Spree?

Earned a Killing Spree in multiplayer Matchmaking.

Yes, Sensei

Earned a First Strike Medal in a Matchmaking game.

Dust and Echoes

Completed the 8th mission on Normal or harder.

Game, Set, Match

Completed a Firefight set on Legendary without dying.

Blaze of Glory

Scored 200,000 points in a Firefight game.

Make It Rain

Purchased an item from the Armory that required the rank of Lt. Colonel.

Into the Howling Dark

Completed the 7th mission on Normal or harder.

They've Always Been Faster

Cleared the 2nd mission without setting foot in a drivable vehicle.

An Elegant Weapon...

Killed 10 enemies in a Firefight or Campaign session with the DMR.

KEEP IT CLEAN

Killed 7 Moa during the 2nd mission of the Campaign.

I See You Favor a .45

Killed 10 enemies in a Firefight or Campaign session with the M6G pistol.

Wake Up, Buttercup

Destroyed the Corvette's engines & escort in under 3 minutes in the 6th mission on Heroic or harder.

Doctor, Doctor

Used a Health Pack to replenish life after taking body damage.

You Flew Pretty Good

Completed the 6th mission on Normal or harder.

To War

Completed the 5th mission on Normal or harder.

Banshees, Fast and Low

Hijacked a Banshee during the Reach Campaign.

That's a Knife

Performed an Assassination on an enemy.

Your Heresy Will Stay Your Feet

Killed the Elite Zealot before he escaped during the 5th mission.

Send Me Out... with a Bang

Completed the 10th mission on Normal or harder.

The Soldier We Needed You To Be

Completed the Campaign on Normal difficulty.

Folks Need Heroes...

Completed the Campaign on Heroic difficulty.

I Need a Weapon

Completed the 4th mission on Normal or harder.

Make it Drizzle

Purchased an item from the Armory.

Protocol Dictates Action

Completed the 3rd mission on Normal or harder.

This is Not Your Grave...

Completed the 9th mission on Normal or harder.

The Start of Something

Reached the rank of Corporal in the UNSC.

Lucky Me

Earned a Triple Kill while Jetpacking in Campaign, Firefight or Matchmaking.

Two Corpses in One Grave

Killed 2 vehicles at once with the Target Locator during the 3rd mission.

We're Just Getting Started

Completed the 2nd mission on Normal or harder.

Heat in the Pipe

Scored 1,000,000 points in a Firefight game.

An Honor Serving

Reached the rank of Captain in the UNSC.

I Didn't Train to Be a Pilot

Killed 3 of the anti-aircraft batteries during the 8th mission.

Swap Meet

Traded weapons with an AI ally in Campaign.

Firestarter

Scored 50,000 points in a Firefight game.

Crowd Control

Earned a Killionaire medal in Firefight.