Complete all chapters in any 5 episodes of Spartan Ops on any difficulty.
Unlocked: 04 Dec 2012 00:15:31
Complete Chapter 4, Episode 5 of Spartan Ops without losing a generator on Heroic or harder.
Unlocked: 03 Dec 2012 21:23:02
In Ch 1, Ep 5 of Spartan Ops survive the enemy assault during the defense on Normal or harder.
Unlocked: 03 Dec 2012 21:11:58
Complete 25 Challenges.
Unlocked: 19 Nov 2012 20:57:59
Save at least one Marine in Chapter 3 of Episode 2 of Spartan Ops on Heroic or harder.
Unlocked: 12 Nov 2012 20:49:47
Bromageddon
40Complete the Campaign cooperatively on Heroic or harder.
Unlocked: 12 Nov 2012 01:49:12
Complete mission 4 without one preventable Marine death on Heroic or harder.
Unlocked: 11 Nov 2012 23:30:58
Bropocalypse
10Complete any Campaign mission cooperatively on Heroic or harder.
Unlocked: 11 Nov 2012 22:28:37
In mission 8, kill 3 Crawlers in one hit with the Gravity Hammer.
Unlocked: 11 Nov 2012 04:51:27
Complete the Campaign on Heroic or harder.
Unlocked: 11 Nov 2012 04:22:24
Complete the Campaign on Legendary difficulty.
Unlocked: 11 Nov 2012 04:22:24
Complete the Campaign solo on Legendary difficulty.
Unlocked: 11 Nov 2012 04:22:24
Midnight
10Complete mission 8 on any difficulty.
Unlocked: 11 Nov 2012 04:22:23
Complete the Campaign on Normal or harder.
Unlocked: 11 Nov 2012 04:22:23
Terminus
50Find all of the Terminals in the Campaign.
Unlocked: 11 Nov 2012 02:55:16
Composer
10Complete mission 7 on any difficulty.
Unlocked: 10 Nov 2012 17:58:26
In Mission 7, in solo Campaign, take out both Hunters using only the Sticky Detonator.
Unlocked: 10 Nov 2012 04:01:50
Shutdown
10Complete mission 6 on any difficulty.
Unlocked: 10 Nov 2012 03:37:37
In mission 6, trick or force a Hunter to fall to his demise.
Unlocked: 10 Nov 2012 03:11:46
Reclaimer
10Complete mission 5 on any difficulty.
Unlocked: 09 Nov 2012 20:19:34
Mortardom
20In mission 5, steal a Wraith and use it to kill at least four enemy Wraiths on Heroic or harder.
Unlocked: 09 Nov 2012 19:15:03
Infinity
10Complete mission 4 on any difficulty.
Unlocked: 09 Nov 2012 17:24:43
Forerunner
10Complete mission 3 on any difficulty.
Unlocked: 09 Nov 2012 02:19:16
In mission 3, carry a UNSC weapon all the way through on Heroic or harder.
Unlocked: 09 Nov 2012 02:17:43
Win 20 War Games matchmaking matches.
Unlocked: 08 Nov 2012 22:04:03
Movin' On Up
25Rank up your Spartan-IV to SR-20.
Unlocked: 08 Nov 2012 21:21:34
Requiem
10Complete mission 2 on any difficulty.
Unlocked: 08 Nov 2012 19:55:23
Find a Terminal in the Campaign.
Unlocked: 08 Nov 2012 19:51:07
Dawn
10Complete mission 1 on any difficulty.
Unlocked: 08 Nov 2012 03:54:28
Skullduggery
15Complete any Campaign mission with 3 or more Skulls on Heroic or harder.
Unlocked: 08 Nov 2012 03:54:28
In mission 1, find and access Chief's record.
Unlocked: 08 Nov 2012 03:22:05
Complete all chapters in Spartan Ops Episode 1 on Legendary difficulty.
Unlocked: 08 Nov 2012 03:09:02
Complete a Spartan Ops chapter solo on Legendary.
Unlocked: 08 Nov 2012 03:09:02
Change your Spartan's pose in the Spartan ID card.
Unlocked: 07 Nov 2012 22:17:43
Find one of the RvB Easter Eggs in Episodes 1 to 5 of Spartan Ops.
Unlocked: 07 Nov 2012 22:05:37
Assassinate a Knight in any Spartan Ops mission.
Unlocked: 07 Nov 2012 21:55:37
Complete a Spartan Ops Mission on any difficulty.
Unlocked: 07 Nov 2012 21:33:01
Win 5 War Games matchmaking matches.
Unlocked: 07 Nov 2012 19:48:14
Armorer
5Change your Spartan's armor in the Spartan Armor card.
Unlocked: 07 Nov 2012 19:36:48
Complete a Challenge.
Unlocked: 07 Nov 2012 19:31:57
Create and save a Custom Game type in War Games.
Unlocked: 07 Nov 2012 19:05:25
Create and save a Custom Map in Forge.
Unlocked: 07 Nov 2012 19:02:06
Upload a File to your File Share.
Unlocked: 07 Nov 2012 18:03:16
Save a Screenshot from the Theater.
Unlocked: 07 Nov 2012 18:01:46
Save a Film Clip from the Theater.
Unlocked: 07 Nov 2012 18:00:14
Rank up your Spartan-IV to SR-5.
Unlocked: 07 Nov 2012 17:44:38
Badge
5Change your Emblem in the Spartan ID card.
Unlocked: 07 Nov 2012 17:43:40
PWND
5Change your Service Tag in the Spartan ID card.
Unlocked: 07 Nov 2012 17:03:35
In mission 2, get significant air in the Warthog at midnight.
Unlocked: Offline
In Crimson DLC matchmaking, score the killing blow on a Mantis.
Unlocked: 05 Mar 2013 23:33:43
In Crimson DLC matchmaking, board an enemy Mantis.
Unlocked: 05 Mar 2013 23:33:38
Bigfoot
20In Crimson DLC matchmaking, kill 20 enemies using the Mantis' stomp attack.
Unlocked: 05 Mar 2013 23:31:50
In Crimson DLC matchmaking, kill 20 enemies with a detached Machine Gun Turret.
Unlocked: 05 Mar 2013 23:02:54
Clay Pigeon
40In Crimson DLC matchmaking, shoot an enemy who’s airborne from a Man Cannon.
Unlocked: 05 Mar 2013 22:23:04
In Crimson DLC matchmaking, kill an enemy with melee when landing from a Man Cannon.
Unlocked: 05 Mar 2013 22:18:49
ODST
30In Crimson DLC matchmaking, kill a player while airborne from a Man Cannon.
Unlocked: 05 Mar 2013 22:18:02
In Crimson DLC matchmaking, get a kill while airborne in a Warthog.
Unlocked: 05 Mar 2013 22:15:12
In Majestic DLC matchmaking, call in 3 ordnance drops during the same game.
Unlocked: 02 Mar 2013 03:29:53
In Majestic DLC matchmaking, get 4 kills using the SAW without dying.
Unlocked: 02 Mar 2013 03:14:18
In Majestic DLC matchmaking, get a Double Kill or higher with one Pulse Grenade.
Unlocked: 02 Mar 2013 02:58:16
Clever Girl
10In Majestic DLC matchmaking, kill 5 enemies while Active Camo is active.
Unlocked: 02 Mar 2013 02:58:13
I See You!
10In Majestic DLC matchmaking, kill 5 enemies while Promethean Vision is active.
Unlocked: 02 Mar 2013 02:51:53
Pigs Can Fly
30In Majestic DLC matchmaking, kill 3 enemies while they are using Jet Packs.
Unlocked: 02 Mar 2013 02:49:05
In Majestic DLC matchmaking, get the 'Close Call' medal twice during one match.
Unlocked: 02 Mar 2013 02:47:51
In Majestic DLC matchmaking, perform a melee kill right after using Thrust Pack.
Unlocked: 02 Mar 2013 02:44:58
Bird of Prey
50In Majestic DLC matchmaking, perform 5 'airsassinations.'
Unlocked: 02 Mar 2013 02:42:59
In Majestic DLC matchmaking, assassinate an enemy who's in zoom mode.
Unlocked: 02 Mar 2013 02:39:47
Sight Seeing
20In Castle DLC matchmaking, complete a match in any mode for each Castle map.
Unlocked: 13 Apr 2013 02:23:24
Hello Nurse!
30In Castle DLC matchmaking, heal a near-death teammate with Regen Field 5 times.
Unlocked: 13 Apr 2013 02:05:45
In Castle DLC matchmaking, disintegrate 6 enemies using Forerunner weapons.
Unlocked: 13 Apr 2013 01:59:40
Scrapyard
30In Castle DLC matchmaking, destroy 2 vehicles during a single game.
Unlocked: 13 Apr 2013 01:57:17
Dodge This!
20In Castle DLC matchmaking, get two direct Spartan Laser kills in one match.
Unlocked: 13 Apr 2013 01:56:43
In Castle DLC matchmaking, kill 5 enemies during a match by running them over.
Unlocked: 13 Apr 2013 01:53:45
In Castle DLC matchmaking, perform 5 melee kills in a single match.
Unlocked: 13 Apr 2013 01:46:36
In Castle DLC matchmaking, assassinate an enemy who is using a Hardlight Shield.
Unlocked: 13 Apr 2013 01:44:41
In Castle DLC matchmaking, disable a vehicle and then hijack it.
Unlocked: 13 Apr 2013 01:41:27
In matchmaking, recover full shields from low health with both Resistor and Recharge active.
Unlocked: 20 Aug 2013 22:51:09
Shocking
10In Bullseye DLC matchmaking, activate both electrical surge systems during a match on Vertigo.
Unlocked: 20 Aug 2013 22:49:18
In matchmaking, score a goal in Ricochet while taking damage with the Resistor active.
Unlocked: 20 Aug 2013 22:47:04
In matchmaking, effectively camp one location without dying for a full 60 seconds.
Unlocked: 20 Aug 2013 22:42:55
Hat Trick
33In matchmaking, score three times in one round of Ricochet.
Unlocked: 20 Aug 2013 22:41:50
In matchmaking, score by throwing the ball from 30 meters in Ricochet.
Unlocked: 20 Aug 2013 22:40:52
One Man Army
27In matchmaking, get four consecutive kills with the Rocket Launcher without dying.
Unlocked: 20 Aug 2013 22:39:49
Got it!
20In Bullseye DLC matchmaking, acquire the Rocket Launcher at the start of a match on Pitfall.
Unlocked: 20 Aug 2013 22:38:47