Doctor, Doctor

5
Use a Health Pack to recover life after taking body damage.
We're Just Getting Started

10
Complete the 2nd mission on Normal or harder.
The Start of Something

15
Reach the rank of Corporal in the UNSC.
Make it Drizzle

10
Purchase any item from the Armory.
An Elegant Weapon...

10
Kill 10 enemies in a Firefight or Campaign session with the DMR.
That's a Knife

10
Perform an Assassination on an enemy.
Protocol Dictates Action

10
Complete the 3rd mission on Normal or harder.
I Need a Weapon

10
Complete the 4th mission on Normal or harder.
Swap Meet

10
Trade weapons with an AI ally in Campaign.
I See You Favor a .45

10
Kill 10 Enemies in a Firefight or Campaign session with the M6G pistol.
To War

10
Complete the 5th mission on Normal or harder.
What's a Killing Spree?

5
Earn a Killing Spree in multiplayer Matchmaking.
You Flew Pretty Good

10
Complete the 6th mission on Normal or harder.
Yes, Sensei

10
Earn a First Strike Medal in a Matchmaking game.
Into the Howling Dark

10
Complete the 7th mission on Normal or harder.
Dust and Echoes

10
Complete the 8th mission on Normal or harder.
Your Heresy Will Stay Your Feet

25
Kill the Elite Zealot before he can escape during the 5th mission.
I Didn't Train to Be a Pilot

10
Kill 3 of the anti-aircraft batteries during the 8th mission.
This is Not Your Grave...

10
Complete the 9th mission on Normal or harder.
Send Me Out... with a Bang

10
Complete the 10th mission on Normal or harder.
The Soldier We Needed You To Be

25
Complete the Campaign on Normal difficulty.
Lucky Me

25
Earn a Triple Kill while Jetpacking in Campaign, Firefight or Matchmaking.
Score Attack

10
Score 15,000 points in Score Attack Firefight Matchmaking.
Cool File, Bro

5
Recommend a file to someone.
Be My Wingman, Anytime

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

10
Score 50,000 points in Firefight on any map.
A Storage Solution

5
Using the File Browser upload a file to your File Share.
One Down, 51 to Go

10
Complete a Weekly Challenge.
Knife to a Gunfight

5
As an Elite, kill 5 Spartan players in Matchmaking.
Crowd Control

10
Earn a Killionaire medal in Firefight.
Lemme Upgrade Ya

10
Advance any Commendation to its Silver state.
A Spoonful of Blamite

10
Kill 10 enemies in Firefight or Campaign with a supercombine explosion.
Folks Need Heroes...

50
Complete the Campaign on Heroic difficulty.
A New Challenger

10
Complete all of the Daily Challenges in a given day.
Banshees, Fast and Low

25
Hijack a Banshee during the Reach Campaign.
Two Corpses in One Grave

25
Kill 2 vehicles at once with the Target Locator during the 3rd mission.
Game, Set, Match

25
Complete a Firefight set on Legendary without dying.
Blaze of Glory

25
Score 200,000 points in Firefight on any map.
KEEP IT CLEAN

5
Kill 7 Moa during the 2nd mission of the Campaign.
They've Always Been Faster

25
Clear the 2nd mission without setting foot in a drivable vehicle.
Heat in the Pipe

75
Score 1,000,000 points in Firefight on any map.
Wake Up, Buttercup

25
Destroy the Corvette's engines & escort in under 3 minutes in the 6th mission on Heroic or harder.
Skunked!

10
Win a game of Invasion in the 1st phase.
If They Came to Hear Me Beg

25
Perform an Assassination against an Elite to survive a fall that would've been fatal.
Gods Must Be Strong

125
Complete the Campaign on Legendary difficulty.
Tank Beats Everything

25
Finish the 9th mission on Legendary with the Scorpion intact.
A Monument to All Your Sins

150
Complete each Campaign Mission on Legendary - alone.
An Honor Serving

25
Reach the rank of Captain in the UNSC.
Make It Rain

10
Purchase an item from the Armory that requires the rank of Lt. Colonel.