Halo 4 Hints & Cheats

Unlockables

Avatar Awards

How to Unlock	Unlockable
Unlock the "Knight in White Assassination" achievement to earn this award.	Knight Helmet
Unlock the "Wake Up, John" achievement to earn this award.	Platinum Mark VI Helmet
Unlock the "Not Some Recruit Anymore" achievement to earn this award.	UNSC Infinity Hoodie

Legendary Completion Unlockables
After completing the Campaign on Legendary, Single Player or Co-op, you will unlock a few features to be used in Infinity.
How to Unlock Unlockable
Beat the Campaign on Legendary Mark VI Armor
Beat the Campaign on Legendary Legendary Visor
Beat the Campaign on Legendary "117" Emblem

How to Unlock	Unlockable
Beat the Campaign on Legendary	Mark VI Armor
Beat the Campaign on Legendary	Legendary Visor
Beat the Campaign on Legendary	"117" Emblem

Specialization Unlocks

This list is to show the unlocks go in each specialization

How to Unlock	Unlockable
Reach specialization ranks 2-4 to unlock the entire 1st set	1st Set of Armor
Reach specialization rank 5	Weapon with Alternate Skin
Reach specialization rank 6	Specialization Visor
Reach specialization ranks 7-9 to unlock the entire 2nd set	2nd Set of Armor
Reach specialization rank 10	Specialization Package Mod

Achievements

Description	Name
Completed mission 1 on any difficulty.	Dawn (10)
Completed mission 2 on any difficulty.	Requiem (10)
Completed mission 3 on any difficulty.	Forerunner (10)
Completed mission 4 on any difficulty.	Infinity (10)
Completed mission 5 on any difficulty.	Reclaimer (10)
Completed mission 6 on any difficulty.	Shutdown (10)
Completed mission 7 on any difficulty.	Composer (10)
Completed mission 8 on any difficulty.	Midnight (10)
Completed the Campaign on Normal or harder.	Wake Up, John (20)
Completed the Campaign on Heroic or harder.	I Need a Hero (40)
Completed the Campaign on Legendary difficulty.	The Legend of 117 (70)
Completed the Campaign solo on Legendary difficulty.	Lone Wolf Legend (90)
Completed any Campaign mission with 3 or more Skulls on Heroic or harder.	Skullduggery (15)
Completed any Campaign mission cooperatively on Heroic or harder.	Bropocalypse (10)
Found a Terminal in the Campaign.	Contact the Domain (10)
Found all of the Terminals in the Campaign.	Terminus (50)
Found and accessed Chief's record in mission 1.	Digging up the Past (20)
Got significant air in the Warthog at midnight in mission 2.	Midnight Launch (20)
Carried a UNSC weapon all the way through mission 3 on Heroic or harder.	This is my Rifle, This is my Gun (20)
Completed mission 4 without one preventable Marine death on Heroic or harder.	Bros to the Close (20)
Hijacked a Wraith and used it to kill at least four enemy Wraiths in mission 5 on Heroic or harder.	Mortardom (20)
Tricked or forced a Hunter to fall to his demise in mission 6.	Explore the Floor (20)
Took out both Hunters using only the Sticky Detonator in mission 7.	Give Him the Stick (20)
Killed 3 Crawlers in one hit with the Gravity Hammer in mission 8.	Chief, Smash! (20)
Ranked up your Spartan-IV to SR-5.	Not Some Recruit Anymore (15)
Ranked up your Spartan-IV to SR-20.	Movin' On Up (25)
Won 5 War Games matchmaking matches.	I <3 Red vs Blue (15)
Won 20 War Games matchmaking matches.	Hanging on the Combat Deck (30)
Completed a Spartan Ops Mission on any difficulty.	Operation Completion (15)
Completed all chapters in Spartan Ops Episode 1 on Legendary difficulty.	A Legendary Episode (40)
Completed all chapters in the first 5 episodes of Spartan Ops on any difficulty.	Dedicated to Crimson (80)
Completed a Spartan Ops chapter solo on Legendary.	Crimson Alone (20)
Found one of the RvB Easter Eggs in Spartan Ops.	Roses vs Violets (20)
Saved at least one Marine in Chapter 3 of Episode 2 of Spartan Ops on Heroic or harder.	No One Left Behind (20)
Assassinated a Knight in any Spartan Ops mission.	Knight in White Assassination (20)
Completed Chapter 4, Episode 5 of Spartan Ops without losing a generator on Heroic or harder.	What Power Outage? (20)
In Ch 1, Ep 5 of Spartan Ops survived the enemy assault during the defense on Normal or harder.	No Easy Way Out (20)
Completed a Challenge.	The Challenged (10)
Completed 25 Challenges.	The Challenger (20)
Changed your Spartan's armor in the Spartan Armor card.	Armorer (5)
Changed your Emblem in the Spartan ID card.	Badge (5)
Changed your Service Tag in the Spartan ID card.	PWND (5)
Changed your Spartan's pose in the Spartan ID card.	What a Poser! (5)
Created and saved a Custom Map in Forge.	The Cartographer (5)
Created and saved a Custom Game type in War Games.	Game Changer (5)
Saved a Screenshot from the Theater.	Snapshot! (5)
Saved a Film Clip from the Theater.	The Director (5)
Uploaded a File to your File Share.	Sharing is Caring (5)
Completed the Campaign cooperatively on Heroic or harder.	Bromageddon (40)