Complete all chapters in any 5 episodes of Spartan Ops on any difficulty.
Unlocked: 03 Dec 2012 18:37:22
Complete Chapter 4, Episode 5 of Spartan Ops without losing a generator on Heroic or harder.
Unlocked: 03 Dec 2012 18:05:32
In Ch 1, Ep 5 of Spartan Ops survive the enemy assault during the defense on Normal or harder.
Unlocked: 03 Dec 2012 17:52:41
Complete 25 Challenges.
Unlocked: 13 Nov 2012 21:15:56
Save at least one Marine in Chapter 3 of Episode 2 of Spartan Ops on Heroic or harder.
Unlocked: 12 Nov 2012 18:35:40
Win 20 War Games matchmaking matches.
Unlocked: 11 Nov 2012 13:03:28
Assassinate a Knight in any Spartan Ops mission.
Unlocked: 11 Nov 2012 10:37:02
Complete all chapters in Spartan Ops Episode 1 on Legendary difficulty.
Unlocked: 10 Nov 2012 22:12:44
Complete a Spartan Ops chapter solo on Legendary.
Unlocked: 10 Nov 2012 20:51:23
Create and save a Custom Game type in War Games.
Unlocked: 10 Nov 2012 20:29:13
Movin' On Up
25Rank up your Spartan-IV to SR-20.
Unlocked: 10 Nov 2012 11:03:46
Create and save a Custom Map in Forge.
Unlocked: 08 Nov 2012 20:17:54
Save a Screenshot from the Theater.
Unlocked: 08 Nov 2012 19:57:28
Complete a Spartan Ops Mission on any difficulty.
Unlocked: 08 Nov 2012 19:32:04
Find one of the RvB Easter Eggs in Episodes 1 to 5 of Spartan Ops.
Unlocked: 08 Nov 2012 19:19:54
In mission 2, get significant air in the Warthog at midnight.
Unlocked: 07 Nov 2012 23:57:23
Mortardom
20In mission 5, steal a Wraith and use it to kill at least four enemy Wraiths on Heroic or harder.
Unlocked: 07 Nov 2012 22:19:28
Upload a File to your File Share.
Unlocked: 07 Nov 2012 20:28:53
Complete mission 4 without one preventable Marine death on Heroic or harder.
Unlocked: 07 Nov 2012 20:24:28
In mission 8, kill 3 Crawlers in one hit with the Gravity Hammer.
Unlocked: 07 Nov 2012 19:48:13
Bromageddon
40Complete the Campaign cooperatively on Heroic or harder.
Unlocked: 07 Nov 2012 19:25:28
Terminus
50Find all of the Terminals in the Campaign.
Unlocked: 07 Nov 2012 17:28:38
Change your Spartan's pose in the Spartan ID card.
Unlocked: 07 Nov 2012 12:33:18
Midnight
10Complete mission 8 on any difficulty.
Unlocked: 07 Nov 2012 12:07:18
Complete the Campaign on Normal or harder.
Unlocked: 07 Nov 2012 12:07:18
Complete the Campaign on Heroic or harder.
Unlocked: 07 Nov 2012 12:07:18
Complete the Campaign on Legendary difficulty.
Unlocked: 07 Nov 2012 12:07:18
Complete the Campaign solo on Legendary difficulty.
Unlocked: 07 Nov 2012 12:07:18
Composer
10Complete mission 7 on any difficulty.
Unlocked: 07 Nov 2012 10:44:58
In Mission 7, in solo Campaign, take out both Hunters using only the Sticky Detonator.
Unlocked: 07 Nov 2012 09:57:38
Bropocalypse
10Complete any Campaign mission cooperatively on Heroic or harder.
Unlocked: 06 Nov 2012 22:28:57
Win 5 War Games matchmaking matches.
Unlocked: 06 Nov 2012 18:29:21
Save a Film Clip from the Theater.
Unlocked: 06 Nov 2012 18:05:26
Armorer
5Change your Spartan's armor in the Spartan Armor card.
Unlocked: 06 Nov 2012 16:43:45
Shutdown
10Complete mission 6 on any difficulty.
Unlocked: 06 Nov 2012 16:28:51
In mission 6, trick or force a Hunter to fall to his demise.
Unlocked: 06 Nov 2012 16:15:00
Reclaimer
10Complete mission 5 on any difficulty.
Unlocked: 06 Nov 2012 14:36:00
Infinity
10Complete mission 4 on any difficulty.
Unlocked: 06 Nov 2012 11:56:10
Forerunner
10Complete mission 3 on any difficulty.
Unlocked: 05 Nov 2012 22:01:13
Skullduggery
15Complete any Campaign mission with 3 or more Skulls on Heroic or harder.
Unlocked: 05 Nov 2012 22:01:13
In mission 3, carry a UNSC weapon all the way through on Heroic or harder.
Unlocked: 05 Nov 2012 21:59:38
Find a Terminal in the Campaign.
Unlocked: 05 Nov 2012 20:08:48
Requiem
10Complete mission 2 on any difficulty.
Unlocked: 05 Nov 2012 18:52:37
Dawn
10Complete mission 1 on any difficulty.
Unlocked: 05 Nov 2012 16:27:04
In mission 1, find and access Chief's record.
Unlocked: 05 Nov 2012 15:35:51
PWND
5Change your Service Tag in the Spartan ID card.
Unlocked: 05 Nov 2012 14:57:42
Rank up your Spartan-IV to SR-5.
Unlocked: 05 Nov 2012 14:24:46
Complete a Challenge.
Unlocked: 05 Nov 2012 14:24:46
Badge
5Change your Emblem in the Spartan ID card.
Unlocked: 05 Nov 2012 13:26:36
Bigfoot
20In Crimson DLC matchmaking, kill 20 enemies using the Mantis' stomp attack.
Unlocked: 12 Dec 2012 17:53:10
In Crimson DLC matchmaking, kill 20 enemies with a detached Machine Gun Turret.
Unlocked: 11 Dec 2012 19:34:21
In Crimson DLC matchmaking, get a kill while airborne in a Warthog.
Unlocked: 11 Dec 2012 17:29:39
In Crimson DLC matchmaking, kill an enemy with melee when landing from a Man Cannon.
Unlocked: 10 Dec 2012 21:53:23
Clay Pigeon
40In Crimson DLC matchmaking, shoot an enemy who’s airborne from a Man Cannon.
Unlocked: 10 Dec 2012 21:00:32
ODST
30In Crimson DLC matchmaking, kill a player while airborne from a Man Cannon.
Unlocked: 10 Dec 2012 20:17:27
In Crimson DLC matchmaking, board an enemy Mantis.
Unlocked: 10 Dec 2012 20:15:35
In Crimson DLC matchmaking, score the killing blow on a Mantis.
Unlocked: 10 Dec 2012 20:15:35
Clever Girl
10In Majestic DLC matchmaking, kill 5 enemies while Active Camo is active.
Unlocked: 25 Feb 2013 22:09:55
In Majestic DLC matchmaking, get the 'Close Call' medal twice during one match.
Unlocked: 25 Feb 2013 22:08:50
I See You!
10In Majestic DLC matchmaking, kill 5 enemies while Promethean Vision is active.
Unlocked: 25 Feb 2013 22:06:20
In Majestic DLC matchmaking, call in 3 ordnance drops during the same game.
Unlocked: 25 Feb 2013 21:52:25
Pigs Can Fly
30In Majestic DLC matchmaking, kill 3 enemies while they are using Jet Packs.
Unlocked: 25 Feb 2013 21:49:35
Bird of Prey
50In Majestic DLC matchmaking, perform 5 'airsassinations.'
Unlocked: 25 Feb 2013 21:45:25
In Majestic DLC matchmaking, assassinate an enemy who's in zoom mode.
Unlocked: 25 Feb 2013 21:38:04
In Majestic DLC matchmaking, get 4 kills using the SAW without dying.
Unlocked: 25 Feb 2013 21:37:39
In Majestic DLC matchmaking, get a Double Kill or higher with one Pulse Grenade.
Unlocked: 25 Feb 2013 21:35:54
In Majestic DLC matchmaking, perform a melee kill right after using Thrust Pack.
Unlocked: 25 Feb 2013 20:45:17
In Castle DLC matchmaking, assassinate an enemy who is using a Hardlight Shield.
Unlocked: 09 Apr 2013 21:16:11
In Castle DLC matchmaking, disintegrate 6 enemies using Forerunner weapons.
Unlocked: 09 Apr 2013 21:13:44
Dodge This!
20In Castle DLC matchmaking, get two direct Spartan Laser kills in one match.
Unlocked: 09 Apr 2013 21:11:41
Scrapyard
30In Castle DLC matchmaking, destroy 2 vehicles during a single game.
Unlocked: 08 Apr 2013 21:37:10
In Castle DLC matchmaking, disable a vehicle and then hijack it.
Unlocked: 08 Apr 2013 21:16:02
Hello Nurse!
30In Castle DLC matchmaking, heal a near-death teammate with Regen Field 5 times.
Unlocked: 08 Apr 2013 20:46:26
In Castle DLC matchmaking, kill 5 enemies during a match by running them over.
Unlocked: 08 Apr 2013 20:06:59
In Castle DLC matchmaking, perform 5 melee kills in a single match.
Unlocked: 08 Apr 2013 19:52:41
Sight Seeing
20In Castle DLC matchmaking, complete a match in any mode for each Castle map.
Unlocked: 08 Apr 2013 19:43:15
In matchmaking, score by throwing the ball from 30 meters in Ricochet.
Unlocked: 20 Jan 2014 22:29:47
Hat Trick
33In matchmaking, score three times in one round of Ricochet.
Unlocked: 20 Jan 2014 22:28:56
In matchmaking, score a goal in Ricochet while taking damage with the Resistor active.
Unlocked: 20 Jan 2014 22:25:56
Got it!
20In Bullseye DLC matchmaking, acquire the Rocket Launcher at the start of a match on Pitfall.
Unlocked: 20 Jan 2014 22:17:45
One Man Army
27In matchmaking, get four consecutive kills with the Rocket Launcher without dying.
Unlocked: 20 Jan 2014 22:08:15
Shocking
10In Bullseye DLC matchmaking, activate both electrical surge systems during a match on Vertigo.
Unlocked: 20 Jan 2014 21:46:59
In matchmaking, recover full shields from low health with both Resistor and Recharge active.
Unlocked: 20 Jan 2014 21:11:11
In matchmaking, effectively camp one location without dying for a full 60 seconds.
Unlocked: 20 Jan 2014 19:40:33