In Ch 1, Ep 5 of Spartan Ops survive the enemy assault during the defense on Normal or harder.
Unlocked: 03 Dec 2012 12:42:53
Complete all chapters in any 5 episodes of Spartan Ops on any difficulty.
Unlocked: 03 Dec 2012 12:31:33
Complete Chapter 4, Episode 5 of Spartan Ops without losing a generator on Heroic or harder.
Unlocked: 03 Dec 2012 12:16:15
Complete 25 Challenges.
Unlocked: 26 Nov 2012 12:04:54
Complete the Campaign solo on Legendary difficulty.
Unlocked: 26 Nov 2012 11:24:21
Complete the Campaign on Legendary difficulty.
Unlocked: 26 Nov 2012 11:24:17
Win 20 War Games matchmaking matches.
Unlocked: 20 Nov 2012 13:55:00
Win 5 War Games matchmaking matches.
Unlocked: 19 Nov 2012 13:26:15
Movin' On Up
25Rank up your Spartan-IV to SR-20.
Unlocked: 19 Nov 2012 12:46:47
Change your Spartan's pose in the Spartan ID card.
Unlocked: 12 Nov 2012 14:05:00
Save at least one Marine in Chapter 3 of Episode 2 of Spartan Ops on Heroic or harder.
Unlocked: 12 Nov 2012 13:49:14
Complete a Spartan Ops chapter solo on Legendary.
Unlocked: 11 Nov 2012 22:46:27
Armorer
5Change your Spartan's armor in the Spartan Armor card.
Unlocked: 10 Nov 2012 19:53:51
Complete all chapters in Spartan Ops Episode 1 on Legendary difficulty.
Unlocked: 10 Nov 2012 19:52:41
Find one of the RvB Easter Eggs in Episodes 1 to 5 of Spartan Ops.
Unlocked: 10 Nov 2012 19:42:06
Assassinate a Knight in any Spartan Ops mission.
Unlocked: 10 Nov 2012 19:31:25
Complete a Spartan Ops Mission on any difficulty.
Unlocked: 10 Nov 2012 19:06:15
Upload a File to your File Share.
Unlocked: 10 Nov 2012 15:35:26
Save a Film Clip from the Theater.
Unlocked: 10 Nov 2012 15:34:14
Save a Screenshot from the Theater.
Unlocked: 10 Nov 2012 15:33:17
Create and save a Custom Game type in War Games.
Unlocked: 10 Nov 2012 15:32:21
Create and save a Custom Map in Forge.
Unlocked: 10 Nov 2012 15:26:24
Rank up your Spartan-IV to SR-5.
Unlocked: 10 Nov 2012 15:20:49
In Mission 7, in solo Campaign, take out both Hunters using only the Sticky Detonator.
Unlocked: 10 Nov 2012 13:32:12
Mortardom
20In mission 5, steal a Wraith and use it to kill at least four enemy Wraiths on Heroic or harder.
Unlocked: 10 Nov 2012 13:14:02
Complete mission 4 without one preventable Marine death on Heroic or harder.
Unlocked: 10 Nov 2012 12:46:50
In mission 3, carry a UNSC weapon all the way through on Heroic or harder.
Unlocked: 10 Nov 2012 12:37:13
Complete a Challenge.
Unlocked: 10 Nov 2012 12:01:30
Skullduggery
15Complete any Campaign mission with 3 or more Skulls on Heroic or harder.
Unlocked: 10 Nov 2012 12:01:13
In mission 2, get significant air in the Warthog at midnight.
Unlocked: 10 Nov 2012 00:00:08
Bromageddon
40Complete the Campaign cooperatively on Heroic or harder.
Unlocked: 09 Nov 2012 12:54:15
Complete the Campaign on Heroic or harder.
Unlocked: 09 Nov 2012 12:54:14
Midnight
10Complete mission 8 on any difficulty.
Unlocked: 09 Nov 2012 12:54:13
Complete the Campaign on Normal or harder.
Unlocked: 09 Nov 2012 12:54:13
In mission 8, kill 3 Crawlers in one hit with the Gravity Hammer.
Unlocked: 09 Nov 2012 11:50:31
Terminus
50Find all of the Terminals in the Campaign.
Unlocked: 09 Nov 2012 11:43:04
Composer
10Complete mission 7 on any difficulty.
Unlocked: 09 Nov 2012 11:13:58
Shutdown
10Complete mission 6 on any difficulty.
Unlocked: 09 Nov 2012 10:33:44
In mission 6, trick or force a Hunter to fall to his demise.
Unlocked: 09 Nov 2012 10:23:36
Reclaimer
10Complete mission 5 on any difficulty.
Unlocked: 09 Nov 2012 09:53:21
Infinity
10Complete mission 4 on any difficulty.
Unlocked: 08 Nov 2012 20:00:49
Forerunner
10Complete mission 3 on any difficulty.
Unlocked: 08 Nov 2012 19:19:42
Requiem
10Complete mission 2 on any difficulty.
Unlocked: 08 Nov 2012 11:27:46
Find a Terminal in the Campaign.
Unlocked: 08 Nov 2012 11:24:56
Dawn
10Complete mission 1 on any difficulty.
Unlocked: 08 Nov 2012 10:51:28
Bropocalypse
10Complete any Campaign mission cooperatively on Heroic or harder.
Unlocked: 08 Nov 2012 10:51:28
In mission 1, find and access Chief's record.
Unlocked: 08 Nov 2012 10:32:39
Badge
5Change your Emblem in the Spartan ID card.
Unlocked: 08 Nov 2012 10:20:14
PWND
5Change your Service Tag in the Spartan ID card.
Unlocked: 08 Nov 2012 10:19:50
In Crimson DLC matchmaking, get a kill while airborne in a Warthog.
Unlocked: 11 Dec 2012 12:59:13
Clay Pigeon
40In Crimson DLC matchmaking, shoot an enemy who’s airborne from a Man Cannon.
Unlocked: 11 Dec 2012 12:51:30
In Crimson DLC matchmaking, kill an enemy with melee when landing from a Man Cannon.
Unlocked: 11 Dec 2012 12:50:23
ODST
30In Crimson DLC matchmaking, kill a player while airborne from a Man Cannon.
Unlocked: 11 Dec 2012 12:47:22
In Crimson DLC matchmaking, kill 20 enemies with a detached Machine Gun Turret.
Unlocked: 11 Dec 2012 12:44:05
Bigfoot
20In Crimson DLC matchmaking, kill 20 enemies using the Mantis' stomp attack.
Unlocked: 11 Dec 2012 12:36:41
In Crimson DLC matchmaking, score the killing blow on a Mantis.
Unlocked: 11 Dec 2012 12:30:53
In Crimson DLC matchmaking, board an enemy Mantis.
Unlocked: 11 Dec 2012 12:28:49
In Majestic DLC matchmaking, get the 'Close Call' medal twice during one match.
Unlocked: 25 Feb 2013 21:09:41
In Majestic DLC matchmaking, perform a melee kill right after using Thrust Pack.
Unlocked: 25 Feb 2013 21:07:32
Clever Girl
10In Majestic DLC matchmaking, kill 5 enemies while Active Camo is active.
Unlocked: 25 Feb 2013 21:03:21
Pigs Can Fly
30In Majestic DLC matchmaking, kill 3 enemies while they are using Jet Packs.
Unlocked: 25 Feb 2013 21:02:24
In Majestic DLC matchmaking, get 4 kills using the SAW without dying.
Unlocked: 25 Feb 2013 20:58:06
In Majestic DLC matchmaking, call in 3 ordnance drops during the same game.
Unlocked: 25 Feb 2013 20:57:42
In Majestic DLC matchmaking, get a Double Kill or higher with one Pulse Grenade.
Unlocked: 25 Feb 2013 20:52:38
I See You!
10In Majestic DLC matchmaking, kill 5 enemies while Promethean Vision is active.
Unlocked: 25 Feb 2013 20:52:23
Bird of Prey
50In Majestic DLC matchmaking, perform 5 'airsassinations.'
Unlocked: 25 Feb 2013 20:49:34
In Majestic DLC matchmaking, assassinate an enemy who's in zoom mode.
Unlocked: 25 Feb 2013 20:46:50
In Castle DLC matchmaking, disintegrate 6 enemies using Forerunner weapons.
Unlocked: 08 Apr 2013 16:45:43
Sight Seeing
20In Castle DLC matchmaking, complete a match in any mode for each Castle map.
Unlocked: 08 Apr 2013 16:21:29
Hello Nurse!
30In Castle DLC matchmaking, heal a near-death teammate with Regen Field 5 times.
Unlocked: 08 Apr 2013 16:17:32
In Castle DLC matchmaking, assassinate an enemy who is using a Hardlight Shield.
Unlocked: 08 Apr 2013 16:03:21
Dodge This!
20In Castle DLC matchmaking, get two direct Spartan Laser kills in one match.
Unlocked: 08 Apr 2013 16:01:44
In Castle DLC matchmaking, perform 5 melee kills in a single match.
Unlocked: 08 Apr 2013 15:59:18
Scrapyard
30In Castle DLC matchmaking, destroy 2 vehicles during a single game.
Unlocked: 08 Apr 2013 15:53:58
In Castle DLC matchmaking, kill 5 enemies during a match by running them over.
Unlocked: 08 Apr 2013 15:49:56
In Castle DLC matchmaking, disable a vehicle and then hijack it.
Unlocked: 08 Apr 2013 15:44:47
Shocking
10In Bullseye DLC matchmaking, activate both electrical surge systems during a match on Vertigo.
Unlocked: 20 Aug 2013 14:20:31
In matchmaking, recover full shields from low health with both Resistor and Recharge active.
Unlocked: 20 Aug 2013 14:06:28
Hat Trick
33In matchmaking, score three times in one round of Ricochet.
Unlocked: 20 Aug 2013 13:59:00
In matchmaking, score a goal in Ricochet while taking damage with the Resistor active.
Unlocked: 20 Aug 2013 13:58:33
In matchmaking, score by throwing the ball from 30 meters in Ricochet.
Unlocked: 20 Aug 2013 13:57:44
In matchmaking, effectively camp one location without dying for a full 60 seconds.
Unlocked: 20 Aug 2013 13:56:01
One Man Army
27In matchmaking, get four consecutive kills with the Rocket Launcher without dying.
Unlocked: 20 Aug 2013 13:51:54
Got it!
20In Bullseye DLC matchmaking, acquire the Rocket Launcher at the start of a match on Pitfall.
Unlocked: 20 Aug 2013 13:50:28