Complete mission 4 without one preventable Marine death on Heroic or harder.
Unlocked: 06 Feb 2013 23:01:52
In mission 3, carry a UNSC weapon all the way through on Heroic or harder.
Unlocked: 09 Dec 2012 19:58:49
Complete all chapters in any 5 episodes of Spartan Ops on any difficulty.
Unlocked: 09 Dec 2012 17:57:31
Complete Chapter 4, Episode 5 of Spartan Ops without losing a generator on Heroic or harder.
Unlocked: 09 Dec 2012 16:05:46
In Ch 1, Ep 5 of Spartan Ops survive the enemy assault during the defense on Normal or harder.
Unlocked: 09 Dec 2012 15:02:29
Bromageddon
40Complete the Campaign cooperatively on Heroic or harder.
Unlocked: 09 Dec 2012 14:05:09
Complete the Campaign on Legendary difficulty.
Unlocked: 01 Dec 2012 12:33:20
Complete the Campaign solo on Legendary difficulty.
Unlocked: 01 Dec 2012 12:33:20
Complete the Campaign on Heroic or harder.
Unlocked: 30 Nov 2012 23:20:46
Complete 25 Challenges.
Unlocked: 18 Nov 2012 11:03:20
Save at least one Marine in Chapter 3 of Episode 2 of Spartan Ops on Heroic or harder.
Unlocked: 13 Nov 2012 20:43:37
In mission 2, get significant air in the Warthog at midnight.
Unlocked: 09 Nov 2012 00:00:18
Mortardom
20In mission 5, steal a Wraith and use it to kill at least four enemy Wraiths on Heroic or harder.
Unlocked: 08 Nov 2012 23:39:05
Win 20 War Games matchmaking matches.
Unlocked: 08 Nov 2012 16:35:59
In mission 6, trick or force a Hunter to fall to his demise.
Unlocked: 08 Nov 2012 12:23:58
In mission 8, kill 3 Crawlers in one hit with the Gravity Hammer.
Unlocked: 08 Nov 2012 12:14:08
In Mission 7, in solo Campaign, take out both Hunters using only the Sticky Detonator.
Unlocked: 08 Nov 2012 12:04:44
Movin' On Up
25Rank up your Spartan-IV to SR-20.
Unlocked: 07 Nov 2012 23:10:23
Skullduggery
15Complete any Campaign mission with 3 or more Skulls on Heroic or harder.
Unlocked: 07 Nov 2012 21:43:08
Bropocalypse
10Complete any Campaign mission cooperatively on Heroic or harder.
Unlocked: 07 Nov 2012 21:09:50
In mission 1, find and access Chief's record.
Unlocked: 07 Nov 2012 20:58:43
Complete all chapters in Spartan Ops Episode 1 on Legendary difficulty.
Unlocked: 07 Nov 2012 20:53:04
Win 5 War Games matchmaking matches.
Unlocked: 07 Nov 2012 16:17:05
Upload a File to your File Share.
Unlocked: 07 Nov 2012 14:26:58
Save a Film Clip from the Theater.
Unlocked: 07 Nov 2012 14:15:50
Save a Screenshot from the Theater.
Unlocked: 07 Nov 2012 14:12:15
Find one of the RvB Easter Eggs in Episodes 1 to 5 of Spartan Ops.
Unlocked: 07 Nov 2012 13:53:20
Change your Spartan's pose in the Spartan ID card.
Unlocked: 07 Nov 2012 13:49:58
Assassinate a Knight in any Spartan Ops mission.
Unlocked: 07 Nov 2012 13:44:20
Complete a Spartan Ops chapter solo on Legendary.
Unlocked: 07 Nov 2012 11:51:39
Complete a Challenge.
Unlocked: 07 Nov 2012 11:40:26
Terminus
50Find all of the Terminals in the Campaign.
Unlocked: 07 Nov 2012 00:52:32
Complete a Spartan Ops Mission on any difficulty.
Unlocked: 06 Nov 2012 23:49:26
Create and save a Custom Game type in War Games.
Unlocked: 06 Nov 2012 21:54:40
Midnight
10Complete mission 8 on any difficulty.
Unlocked: 06 Nov 2012 21:24:59
Complete the Campaign on Normal or harder.
Unlocked: 06 Nov 2012 21:24:59
Composer
10Complete mission 7 on any difficulty.
Unlocked: 06 Nov 2012 20:43:40
Shutdown
10Complete mission 6 on any difficulty.
Unlocked: 06 Nov 2012 20:12:30
Reclaimer
10Complete mission 5 on any difficulty.
Unlocked: 06 Nov 2012 19:30:52
Rank up your Spartan-IV to SR-5.
Unlocked: 06 Nov 2012 14:33:41
Infinity
10Complete mission 4 on any difficulty.
Unlocked: 06 Nov 2012 13:28:58
Forerunner
10Complete mission 3 on any difficulty.
Unlocked: 06 Nov 2012 12:51:38
Requiem
10Complete mission 2 on any difficulty.
Unlocked: 06 Nov 2012 12:09:55
Find a Terminal in the Campaign.
Unlocked: 06 Nov 2012 12:07:06
Dawn
10Complete mission 1 on any difficulty.
Unlocked: 06 Nov 2012 11:33:52
Create and save a Custom Map in Forge.
Unlocked: 06 Nov 2012 01:52:33
Badge
5Change your Emblem in the Spartan ID card.
Unlocked: 06 Nov 2012 01:48:32
PWND
5Change your Service Tag in the Spartan ID card.
Unlocked: 06 Nov 2012 01:47:41
Armorer
5Change your Spartan's armor in the Spartan Armor card.
Unlocked: 06 Nov 2012 01:45:50
In Crimson DLC matchmaking, kill an enemy with melee when landing from a Man Cannon.
Unlocked: 11 Dec 2012 21:48:56
ODST
30In Crimson DLC matchmaking, kill a player while airborne from a Man Cannon.
Unlocked: 11 Dec 2012 21:20:53
Clay Pigeon
40In Crimson DLC matchmaking, shoot an enemy who’s airborne from a Man Cannon.
Unlocked: 11 Dec 2012 21:18:17
In Crimson DLC matchmaking, get a kill while airborne in a Warthog.
Unlocked: 11 Dec 2012 21:02:53
In Crimson DLC matchmaking, kill 20 enemies with a detached Machine Gun Turret.
Unlocked: 11 Dec 2012 20:38:31
Bigfoot
20In Crimson DLC matchmaking, kill 20 enemies using the Mantis' stomp attack.
Unlocked: 11 Dec 2012 20:23:07
In Crimson DLC matchmaking, score the killing blow on a Mantis.
Unlocked: 11 Dec 2012 20:15:10
In Crimson DLC matchmaking, board an enemy Mantis.
Unlocked: 11 Dec 2012 20:04:07
Bird of Prey
50In Majestic DLC matchmaking, perform 5 'airsassinations.'
Unlocked: 02 Mar 2013 18:59:52
Pigs Can Fly
30In Majestic DLC matchmaking, kill 3 enemies while they are using Jet Packs.
Unlocked: 02 Mar 2013 18:58:52
In Majestic DLC matchmaking, call in 3 ordnance drops during the same game.
Unlocked: 02 Mar 2013 18:53:30
Clever Girl
10In Majestic DLC matchmaking, kill 5 enemies while Active Camo is active.
Unlocked: 02 Mar 2013 18:48:59
I See You!
10In Majestic DLC matchmaking, kill 5 enemies while Promethean Vision is active.
Unlocked: 02 Mar 2013 18:45:48
In Majestic DLC matchmaking, get a Double Kill or higher with one Pulse Grenade.
Unlocked: 02 Mar 2013 18:43:33
In Majestic DLC matchmaking, perform a melee kill right after using Thrust Pack.
Unlocked: 02 Mar 2013 18:39:52
In Majestic DLC matchmaking, get 4 kills using the SAW without dying.
Unlocked: 02 Mar 2013 18:33:05
In Majestic DLC matchmaking, get the 'Close Call' medal twice during one match.
Unlocked: 02 Mar 2013 18:22:12
In Majestic DLC matchmaking, assassinate an enemy who's in zoom mode.
Unlocked: 02 Mar 2013 18:16:00
In Castle DLC matchmaking, disintegrate 6 enemies using Forerunner weapons.
Unlocked: 14 Apr 2013 11:25:51
Scrapyard
30In Castle DLC matchmaking, destroy 2 vehicles during a single game.
Unlocked: 14 Apr 2013 11:19:34
Hello Nurse!
30In Castle DLC matchmaking, heal a near-death teammate with Regen Field 5 times.
Unlocked: 14 Apr 2013 11:16:31
Sight Seeing
20In Castle DLC matchmaking, complete a match in any mode for each Castle map.
Unlocked: 14 Apr 2013 11:14:40
Dodge This!
20In Castle DLC matchmaking, get two direct Spartan Laser kills in one match.
Unlocked: 14 Apr 2013 10:57:55
In Castle DLC matchmaking, kill 5 enemies during a match by running them over.
Unlocked: 14 Apr 2013 10:47:36
In Castle DLC matchmaking, disable a vehicle and then hijack it.
Unlocked: 14 Apr 2013 10:41:54
In Castle DLC matchmaking, assassinate an enemy who is using a Hardlight Shield.
Unlocked: 14 Apr 2013 10:39:14
In Castle DLC matchmaking, perform 5 melee kills in a single match.
Unlocked: 14 Apr 2013 10:30:38
Shocking
10In Bullseye DLC matchmaking, activate both electrical surge systems during a match on Vertigo.
Unlocked: 01 Sep 2013 15:54:39
In matchmaking, effectively camp one location without dying for a full 60 seconds.
Unlocked: 01 Sep 2013 15:51:53
In matchmaking, recover full shields from low health with both Resistor and Recharge active.
Unlocked: 01 Sep 2013 15:50:58
Hat Trick
33In matchmaking, score three times in one round of Ricochet.
Unlocked: 01 Sep 2013 15:46:22
In matchmaking, score a goal in Ricochet while taking damage with the Resistor active.
Unlocked: 01 Sep 2013 15:46:22
In matchmaking, score by throwing the ball from 30 meters in Ricochet.
Unlocked: 01 Sep 2013 15:44:16
One Man Army
27In matchmaking, get four consecutive kills with the Rocket Launcher without dying.
Unlocked: 01 Sep 2013 15:40:40
Got it!
20In Bullseye DLC matchmaking, acquire the Rocket Launcher at the start of a match on Pitfall.
Unlocked: 01 Sep 2013 15:40:25