Successfully complete Campaign mode on Legendary, single player, or Co-op modes to unlock this item in Infinity mode.
Complete the game on the Legendary difficulty to view a secret ending after the credits end. This ending will include Master Chief being unmasked.
On Composer, in the room with the two Hunters, there is a data pad on one of the tables. Click on it and you begin to hear a message on how Halo Installation 03 was discovered by the science team.
Complete the indicated task to unlock the corresponding Avatar Award.
| Award | How to unlock
|
|---|
| - Unlock the "Knight in White Assassination" achievement.
|
| - Unlock the "Wake Up, John" achievement.
|
| - Unlock the "Not Some Recruit Anymore" achievement.
|
Castle Map Pack: Achievements
Complete the following achievements to unlock Xbox Live Gamerscore points.
| Achievement | How to unlock
|
|---|
- Ashes to Ashes (10 points)
| - In Castle DLC Matchmaking, disintegrate 6 enemies using Forerunner weapons.
|
- Beating up the Beat (30 points)
| - In Castle DLC Matchmaking, perform 5 melee kills in a single match.
|
| - In Castle DLC Matchmaking, get two direct Spartan Laser kills in one match.
|
| - In Castle DLC Matchmaking, heal a near-death teammate with Regen Field 5 times.
|
- Outta My Way! (40 points)
| - In Castle DLC Matchmaking, kill 5 enemies during a match by running them over.
|
| - In Castle DLC Matchmaking, destroy 2 vehicles during a single game.
|
| - In Castle DLC Matchmaking, complete a match in any mode for each Castle map
|
- That Won't Save You (30 points)
| - In Castle DLC Matchmaking, assassinate an enemy who is using a Hardlight Shield.
|
- What is Yours is Also Mine (40 points)
| - In Castle DLC Matchmaking, disable a vehicle and then hijack it.
|
Champions Bundle: Achievements
Complete the following achievements to unlock Xbox Live Gamerscore points.
| Achievement | How to unlock
|
|---|
- Can't Catch Me (20 points)
| - In matchmaking, score a goal in Ricochet while taking damage with the Resistor active.
|
- From Downtown (25 points)
| - In matchmaking, score by throwing the ball from 30 meters in Ricochet.
|
| - In Bullseye DLC matchmaking, acquire the Rocket Launcher at the start of a match on Pitfall.
|
| - In matchmaking, score three times in one round of Ricochet.
|
- Just a Scratch (20 points)
| - In matchmaking, recover full shields from low health with both Resistor and Recharge active.
|
| - In matchmaking, get four consecutive kills with the Rocket Launcher without dying.
|
- Pitchin' a Tent (40 points)
| - In matchmaking, effectively camp one location without dying for a full 60 seconds.
|
- Protect This House (30 points)
| - In matchmaking, assassinate the ball carrier within five meters of your own goal in Ricochet.
|
- Repeat Survivor (25 points)
| - In matchmaking, survive three vehicle explosions in a row with the Survivor package.
|
| - In Bullseye DLC matchmaking, activate both electrical surge systems during a match on Vertigo.
|
Crimson Map Pack: Various: Achievements
Complete the following achievements to unlock Xbox Live Gamerscore points.
| Achievement | How to unlock
|
|---|
| - In Crimson DLC matchmaking, kill 20 enemies using the Mantis' stomp attack.
|
| - In Crimson DLC matchmaking, shoot an enemy who's airborne from a Man Cannon.
|
- David and Goliath (20 points)
| - In Crimson DLC matchmaking, board an enemy Mantis.
|
- Now They Fly? (50 points)
| - In Crimson DLC matchmaking, get a kill while airborne in a Warthog.
|
| - In Crimson DLC matchmaking, kill a player while airborne from a Man Cannon.
|
- Pump Yer Brakes (40 points)
| - In Crimson DLC matchmaking, score the killing blow on a Mantis.
|
- Size is Everything (20 points)
| - In Crimson DLC matchmaking, kill 20 enemies with a detached Machine Gun Turret.
|
- Special Delivery (30 points)
| - In Crimson DLC matchmaking, kill an enemy with melee when landing from a Man Cannon.
|
On Composer, there is a secret area that will take you to the top of a cliff. Once you reach the top, look down and you will see some Grunts and Jackals dancing around.
Defeating Promethean Knights
When there are multiple Promethean Knights in an area they can be very troublesome (especially under the Legendary difficulty). To easily dispose of the knights, make sure you have a mid range weapon (pistol, DMR, battle rifle, carbine, light rifle, etc...) and the shotgun (or equivalent). Start by using your mid range weapon to head shot one of the knights from a distance, but use a low rate of fire to conserve ammo. Fire only one shot every couple of seconds. This will tick off the knight and "bait" him into doing the teleporting-dash across the map to melee you, thus bringing him in close and separating him from the rest of the knights. When you see the knight begin to teleport-dash towards you, quickly run backwards and slightly to the side to dodge his melee attack, then switch to your shotgun and blast him at point blank range. Repeat this tactic as necessary.
Easy "Skullduggary" achievement
Play through any campaign mission under Legendary with the IWHBYD, Grunt Birthday party, and Cowbell Skulls enabled. These three skulls do not increase the game's difficulty by too much, and count towards the achievement.
This requires a preordered game with the battle rifle with an Arctic skin.. Create a custom game and make your first weapon random. Make sure the battle rifle is set in a loadout. When you choose that loadout, any weapon that has a skin will be wearing it, however the sword just disappears (but is still usable).
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.
| Unlockable | How to unlock
|
|---|
| - Beat the Campaign on Legendary
|
| - Beat the Campaign on Legendary
|
| - Beat the Campaign on Legendary
|
Successfully complete Campaign mode on Legendary, single player, or Co-op modes to unlock this item in Infinity mode.
Majestic Map Pack: Various Achievements
Complete the following achievements to unlock Xbox Live Gamerscore points.
| Achievement | Description
|
|---|
| - In Majestic DLC matchmaking, perform 5 'airsassinations.'
|
- Bullet Sponge (30 points)
| - In Majestic DLC matchmaking, get the 'Close Call' medal twice during one match.
|
- Callin' in the Big Guns (40 points)
| - In Majestic DLC matchmaking, call in 3 ordnance drops during the same game.
|
| - In Majestic DLC matchmaking, kill 5 enemies while Active Camo is active.
|
- Didn't See It Comin' (10 points)
| - In Majestic DLC matchmaking, assassinate an enemy who's in zoom mode.
|
- Flash of Light (30 points)
| - In Majestic DLC matchmaking, get a Double Kill or higher with one Pulse Grenade.
|
| - In Majestic DLC matchmaking, kill 5 enemies while Promethean Vision is active.
|
- I Thrust at Thee (20 points)
| - In Majestic DLC matchmaking, perform a melee kill right after using Thrust Pack.
|
- Last Man Grinning (20 points)
| - In Majestic DLC matchmaking, get 4 kills using the SAW without dying.
|
| - In Majestic DLC matchmaking, kill 3 enemies while they are using Jet Packs.
|
Successfully complete Campaign mode on Legendary, single player, or Co-op modes to unlock this item in Infinity mode.
Navigating the Broadsword during the last mission
During the part where you are flying the Broadsword ship through crevices on the Didact's ship, whenever you reach an area with an open ceiling you can fly over most of the obstacles and turrets, making it easier to traverse the beginning of the mission.
The following enemy totals are present in Spartan Ops.
Episode 1: Chapter 1: Land Grab
Solo, Easy
10 Minutes
3,000 XP
85 Enemies
29 - Grunt Slayer
23 - Elite Slayer
12 - Grunt Imperial Slayer
7 - Elite Officer Slayer
5 - Ghost Destroyer
5 - Wraith Destroyer
2 - Hunter Slayer
1 - Elite General Slayer
1 - Grunt Ultra Slayer
Episode 1: Chapter 2: Sniper Alley
Solo, Easy
12 Minutes
3,000 XP
120 Enemies
41 - Grunt Slayer
26 - Grunt Imperial Slayer
24 - Jackal Slayer
10 - Jackal Ranger Slayer
7 - Elite Slayer
4 - Elite Officer Slayer
4 - Jackal Major Slayer
3 - Elite Zealot Slayer
1 - Elite General Slayer
Episode 1: Chapter 3: The Challenge
Solo, Easy
10 Minutes
3,000 XP
108 Enemies
42 - Crawler Prime Slayer
28 - Watcher Slayer
25 - Crawler Slayer
11 - Crawler Sniper Slayer
Episode 1: Chapter 4: Sacred
Solo, Easy
10 Minutes
3,000 XP
65 Enemies
24 - Crawler Slayer
20 - Crawler Prime Slayer
9 - Knight Slayer
5 - Watcher Slayer
4 - Knight Battlewagon Slayer
2 - Crawler Sniper Slayer
1 - Knight Commander Slayer
Episode 1: Chapter 5: Core
Solo, Easy
9 Minutes
3,000 XP
65 Enemies
17 - Grunt Slayer
16 - Crawler Slayer
15 - Grunt Imperial Slayer
8 - Crawler Prime Slayer
8 - Jackal Slayer
4 - Watcher Slayer
3 - Elite Zealot Slayer
3 - Elite Slayer
2 - Crawler Sniper Slayer
2 - Knight Battlewagon Slayer
2 - Knight Slayer
2 - Jackal Major Slayer
1 - Elite Officer Slayer
Episode 2: Chapter 1: Clean Up
Solo, Easy
13 Minutes
3,000 XP
122 Enemies
35 - Grunt Slayer
24 - Watcher Slayer
13 - Crawler Slayer
12 - Crawler Prime Slayer
10 - Grunt Imperial Slayer
6 - Jackal Slayer
4 - Knight Slayer
3 - Jackal Major Slayer
2 - Elite Officer Slayer
2 - Elite Slayer
2 - Jackal Ranger Slayer
1 - Knight Battlewagon Slayer
1 - Elite General Slayer
1 - Grunt Ultra Slayer
1 - Elite Zealot Slayer
Episode 2: Chapter 2: For Science
Solo, Easy
9 Minutes
3,000 XP
81 Enemies
24 - Grunt Slayer
15 - Grunt Imperial Slayer
12 - Elite Slayer
12 - Jackal Slayer
7 - Elite Officer Slayer
5 - Jackal Major Slayer
4 - Elite Zealot Slayer
1 - Elite General Slayer
1 - Jackal Ranger Slayer
Episode 2: Chapter 3: Hacksaw
Solo, Easy
8 Minutes
3,000 XP
45 to 57 Enemies
16 - Elite Slayer
11 - Grunt Slayer
8 - Elite Officer Slayer
7 - Grunt Imperial Slayer
6 - Jackal Slayer
2 - Phantom - No Commendation Associated
2 - Hunter Slayer
1 - Elite General Slayer
1 - Wraith Destroyer
1 - Ghost Destroyer
1 - Jackal Ranger Slayer
1 - Jackal Major Slayer
Episode 2: Chapter 4: Pelican Down
Solo, Easy
11 Minutes
3,000 XP
116 Enemies
28 - Jackal Ranger Slayer
27 - Grunt Slayer
21 - Grunt Imperial Slayer
10 - Elite Officer Slayer
8 - Elite Slayer
8 - Jackal Slayer
4 - Elite Zealot SLayer
4 - Grunt Ultra Slayer
3 - Elite General Slayer
2 - Hunter Slayer
1 - Jackal Major Slayer
Episode 2: Chapter 5: Gagarin
Solo, Easy
15-18 Minutes
3,000 XP
116 Enemies
71 - Crawler Slayer
18 - Crawler Prime Slayer
18 - Knight Slayer
9 - Watcher Slayer
Episode 3: Chapter 1: The VIP
Solo, Easy
15 Minutes
3,000 XP
134 Enemies
35 - Grunt Slayer
25 - Jackal Ranger Slayer
24 - Elite Slayer
15 - Grunt Imperial Slayer
11 - Elite Officer Slayer
8 - Grunt Ultra Slayer
5 - Elite General Slayer
4 - Wraith Destroyer
4 - Jackal Major Slayer
2 - Jackal Slayer
1 - Elite Zealot Slayer
Episode 3: Chapter 2: Galileo
Solo, Easy
11 Minutes
3,000 XP
91 Enemies
29 - Grunt Imperial Slayer
25 - Grunt Slayer
10 - Elite Slayer
6 - Elite Officer Slayer
6 - Jackal Slayer
4 - Jackal Ranger Slayer
3 - Elite Zealot Slayer
3 - Jackal Major Slayer
2 - Banshee Destroyer
2 - Hunter Slayer
1 - Grunt Ultra Slayer
Episode 3: Chapter 3: Spartan Mountain
Solo, Easy
10 Minutes
74 Enemies
19 - Jackal Ranger Slayer
11 - Elite Zealot Slayer
10 - Jackal Slayer
8 - Elite Slayer
8 - Elite Officer Slayer
7 - Grunt Slayer
3 - Hunter Slayer
3 - Grunt Imperial Slayer
2 - Jackal Major Slayer
1 - Grunt Ultra Slayer
1 - Elite General Slayer
1 - Ghost Destroyer
Episode 3: Chapter 4: Shootout In Valhalla
Solo, Easy
20 to25 Minutes
217 Enemies
50 - Elite Slayer
37 - Grunt Slayer
28 - Banshee Destroyer
27 - Jackal Slayer
19 - Grunt Imperial Slayer
14 - Elite Officer Slayer
14 - Hunter Slayer
7 - Phantom - No Commendation Associated
7 - Jackal Ranger Slayer
6 - Jackal Major Slayer
2 - Wraith Destroyer
Episode 3: Chapter 5: Hunting Trip
Solo, Easy
13 Minutes
137 Enemies
34 - Grunt Slayer
26 - Jackal Ranger Slayer
19 - Jackal Slayer
18 - Grunt Imperial Slayer
14 - Elite Zealot Slayer
10 - Jackal Major Slayer
5 -Grunt Ultra Slayer
5 - Elite Officer Slayer
3 - Elite Slayer
2 - Hunter Slayer
1 - Elite General Slayer
Episode 4: Chapter 1: Hairy Call
Solo, Easy
10 Minutes
3,000 XP
102 Enemies
33 - Grunt Imperial Slayer
31 - Grunt Slayer
8 - Elite Zealot Slayer
8 - Elite Officer Slayer
7 - Elite Slayer
7 - Jackal Ranger Slayer
4 - Jackal Slayer
2 - Hunter Slayer
2 - Jackal Major Slayer
Episode 4: Chapter 2: Rally Point
Solo, Easy
9 Minutes
3,000 XP
81 Enemies
35 - Crawler Slayer
8 - Crawler Prime Slayer
7 - Knight Slayer
7 - Watcher Slayer
5 - Knight Battlewagon Slayer
5 - Elite Slayer
5 - Elite Zealot Slayer
2 - Elite Officer Slayer
2 - Jackal Slayer
2 - Wraith Destroyer
1 - Grunt Slayer
Episode 4: Chapter 3: Random Transport
Solo, Easy
10 Minutes
93 Enemies
17 - Elite Officer Slayer
16 - Jackal Major Slayer
15 - Grunt Slayer
12 - Jackal Ranger Slayer
10 - Grunt Imperial Slayer
8 - Elite Slayer
5 - Elite General Slayer
5 - Grunt Ultra Slayer
3 - Elite Zealot Slayer
2 - Hunter Slayer
Episode 4: Chapter 4: The Chase
Solo, Easy
13 Minutes
119 Enemies
36 - Grunt Slayer
20 - Jackal Slayer
18 - Grunt Imperial Slayer
11 - Elite Officer Slayer
9 - Watcher Slayer
6 - Knight Slayer
5 - Knight Battlewagon Slayer
5 - Jackal Major Slayer
3 - Elite Slayer
2 - Elite General Slayer
1 - Knight Commander Slayer
1 - Elite Zealot Slayer
Episode 4: Chapter 5: The Didact's Gift
Solo, Easy
17 Minutes
163 Enemies
33 - Crawler Slayer
30 - Grunt Slayer
21 - Jackal Slayer
13 - Jackal Ranger Slayer
12 - Elite Slayer
11 - Grunt Imperial Slayer
9 - Crawler Prime Slayer
8 - Knight Slayer
8 - Jackal Major Slayer
7 - Watcher Slayer
4 - Grunt Ultra Slayer
2 - Hunter Slayer
2 - Knight Battlewagon Slayer
2 - Elite Officer Slayer
1 - Ghost Destroyer
This list is to show the unlocks go in each specialization.
| Unlockable | How to unlock
|
|---|
| - Reach specialization ranks 2-4 to unlock the entire 1st set.
|
| - Reach specialization ranks 7-9 to unlock the entire 2nd set.
|
- Specialization Package Mod
| - Reach specialization rank 10.
|
| - Reach specialization rank 6.
|
- Weapon with Alternate Skin
| - Reach specialization rank 5.
|
Complete the following achievements to unlock Xbox Live Gamerscore points.
| Achievement | How to unlock
|
|---|
- A Legendary Episode (40 points)
| - Completed all chapters in Spartan Ops Episode 1 on Legendary difficulty.
|
| - Changed your Spartan's armor in the Spartan Armor card.
|
| - Changed your Emblem in the Spartan ID card.
|
| - Completed the Campaign cooperatively on Heroic or harder.
|
| - Completed any Campaign mission cooperatively on Heroic or harder.
|
- Bros to the Close (20 points)
| - Completed mission 4 without one preventable Marine death on Heroic or harder.
|
- Chief, Smash! (20 points)
| - Killed 3 Crawlers in one hit with the Gravity Hammer in mission 8.
|
| - Completed mission 7 on any difficulty.
|
- Contact the Domain (10 points)
| - Found a Terminal in the Campaign.
|
- Crimson Alone (20 points)
| - Completed a Spartan Ops chapter solo on Legendary.
|
| - Completed mission 1 on any difficulty.
|
- Dedicated to Crimson (80 points)
| - Completed all chapters in the first 5 episodes of Spartan Ops on any difficulty.
|
- Digging up the Past (20 points)
| - Found and accessed Chief's record in mission 1.
|
- Explore the Floor (20 points)
| - Tricked or forced a Hunter to fall to his demise in mission 6.
|
| - Completed mission 3 on any difficulty.
|
| - Created and saved a Custom Game type in War Games.
|
- Give Him the Stick (20 points)
| - Took out both Hunters using only the Sticky Detonator in mission 7.
|
- Hanging on the Combat Deck (30 points)
| - Won 20 War Games matchmaking matches.
|
- I <3 Red vs Blue (15 points)
| - Won 5 War Games matchmaking matches.
|
- I Need a Hero (40 points)
| - Completed the Campaign on Heroic or harder.
|
| - Completed mission 4 on any difficulty.
|
- Knight in White Assassination (20 points)
| - Assassinated a Knight in any Spartan Ops mission.
|
- Lone Wolf Legend (90 points)
| - Completed the Campaign solo on Legendary difficulty.
|
| - Completed mission 8 on any difficulty.
|
- Midnight Launch (20 points)
| - Got significant air in the Warthog at midnight in mission 2.
|
| - Hijacked a Wraith and used it to kill at least four enemy Wraiths in mission 5 on Heroic or harder.
|
| - Ranked up your Spartan-IV to SR-20.
|
- No Easy Way Out (20 points)
| - In Ch 1, Ep 5 of Spartan Ops survived the enemy assault during the defense on Normal or harder.
|
- No One Left Behind (20 points)
| - Saved at least one Marine in Chapter 3 of Episode 2 of Spartan Ops on Heroic or harder.
|
- Not Some Recruit Anymore (15 points)
| - Ranked up your Spartan-IV to SR-5.
|
- Operation Completion (15 points)
| - Completed a Spartan Ops Mission on any difficulty.
|
| - Changed your Service Tag in the Spartan ID card.
|
| - Completed mission 5 on any difficulty.
|
| - Completed mission 2 on any difficulty.
|
- Roses vs Violets (20 points)
| - Found one of the RvB Easter Eggs in Spartan Ops.
|
- Sharing is Caring (5 points)
| - Uploaded a File to your File Share.
|
| - Completed mission 6 on any difficulty.
|
| - Completed any Campaign mission with 3 or more Skulls on Heroic or harder.
|
| - Saved a Screenshot from the Theater.
|
| - Found all of the Terminals in the Campaign.
|
- The Cartographer (5 points)
| - Created and saved a Custom Map in Forge.
|
- The Challenged (10 points)
| |
- The Challenger (20 points)
| |
| - Saved a Film Clip from the Theater.
|
- The Legend of 117 (70 points)
| - Completed the Campaign on Legendary difficulty.
|
- This is my Rifle, This is my Gun (20 points)
| - Carried a UNSC weapon all the way through mission 3 on Heroic or harder.
|
- Wake Up, John (20 points)
| - Completed the Campaign on Normal or harder.
|
- What Power Outage? (20 points)
| - Completed Chapter 4, Episode 5 of Spartan Ops without losing a generator on Heroic or harder.
|
| - Changed your Spartan's pose in the Spartan ID card.
|
More Cheats, Tips, Secrets & Walkthroughs
