Traverse the canyon without a Phaeton in Reunion on Heroic difficulty.

Unlocked: 12 Nov 2015 10:52 pm

Find and claim all Skulls.

Unlocked: 11 Nov 2015 08:55 am

Spectate a game.

Unlocked: 10 Nov 2015 10:43 pm

Complete every Mission of the game on Normal difficulty.

Unlocked: 10 Nov 2015 07:22 pm

Complete Mission 15.

Unlocked: 10 Nov 2015 07:22 pm

Find and claim all Intel.

Unlocked: 10 Nov 2015 06:57 pm

Complete Mission 14.

Unlocked: 10 Nov 2015 06:06 pm

Complete Mission 13.

Unlocked: 10 Nov 2015 02:53 pm

Complete Mission 12.

Unlocked: 9 Nov 2015 05:56 pm

Complete Mission 11.

Unlocked: 9 Nov 2015 02:36 pm

Complete Mission 10.

Unlocked: 9 Nov 2015 12:36 pm

Complete Enemy Lines without destroying a Kraken turret.

Unlocked: 9 Nov 2015 12:35 pm

Complete Mission 9.

Unlocked: 9 Nov 2015 05:02 am

Complete Mission 8.

Unlocked: 9 Nov 2015 04:35 am

Destroy 10 walls or floors in Swords of Sanghelios.

Unlocked: 9 Nov 2015 04:17 am

Complete Mission 7.

Unlocked: 8 Nov 2015 09:23 am

Open a Gold REQ Pack.

Unlocked: 7 Nov 2015 11:07 am

Complete Mission 6.

Unlocked: 7 Nov 2015 08:48 am

Complete Mission 5.

Unlocked: 6 Nov 2015 09:49 pm

Kill an enemy that's had its armor repaired in Unconfirmed.

Unlocked: 6 Nov 2015 08:13 pm

Complete Mission 4.

Unlocked: 6 Nov 2015 07:58 pm

Complete Glassed without entering a vehicle.

Unlocked: 6 Nov 2015 07:34 pm

Complete Glassed without any players using Smart-Link.

Unlocked: 6 Nov 2015 07:34 pm

Complete Mission 3.

Unlocked: 6 Nov 2015 07:34 pm

Escape the Hunters in the lab and fight them in the hangar in Blue Team.

Unlocked: 6 Nov 2015 06:32 pm

Complete Mission 2.

Unlocked: 6 Nov 2015 05:47 pm

Find and claim a Skull.

Unlocked: 6 Nov 2015 11:18 am

Complete Mission 1.

Unlocked: 29 Oct 2015 10:16 pm

Complete any co-op Mission on Heroic difficulty.

Unlocked: 29 Oct 2015 10:16 pm

Command your team of Spartans in Osiris.

Unlocked: 29 Oct 2015 09:42 pm

Find and claim one piece of Intel.

Unlocked: 29 Oct 2015 09:40 pm

Change your Service Tag in the Spartan Hub.

Unlocked: 28 Oct 2015 01:03 pm

Change your Emblem in the Spartan Hub.

Unlocked: 27 Oct 2015 11:56 am

Change your Spartan's gear in the Spartan Hub.

Unlocked: 27 Oct 2015 11:49 am

Create and save a Custom Game.

Complete 3 matchmade games of Warzone.

Call in a REQ that costs 5 Energy or more.

Win a match on all three original Warzone maps.

Complete 5 matchmade games of Strongholds.

Complete 5 matchmade games of Breakout.

Complete 5 matchmade games of Capture the Flag.

Complete 5 matchmade games of Slayer.

Complete every Mission of the game on Heroic difficulty.

Complete every Mission of the game on Legendary difficulty.

Kill a Legendary Boss in Warzone.

Finish Evacuation within 18:00 without dying on Heroic difficulty.

Help the Elite General charge the hill in Osiris on Heroic difficulty.

Simultaneously assassinate two Elites in Blue Team co-op.

Team up in a vehicle to kill 30 enemies in Unconfirmed co-op.

Keep 6 miners alive at the elevator in Evacuation on Heroic difficulty.

Destroy the Phantom at the Covenant camp in Reunion on Heroic difficulty.

Complete Swords of Sanghelios co-op with both Mantises on Heroic difficulty.

Escape the doomed Kraken by jumping onto a Phaeton piloted by a Spartan.

Kill a Grunt and smash a grate with a Ground Pound in Battle of Sunaion.

Knock two Hunters into the ocean during the Battle of Sunaion.

Finish the 13th mission without losing the Scorpion on Legendary difficulty.

Operate four different vehicles at once in Mission 13 on Heroic difficulty.

Complete The Breaking on Legendary difficulty without the entire fireteam dying.

Simultaneously kill two Wardens in The Breaking on Heroic difficulty.

Use a Ground Pound on an exterior power core in Guardians on Heroic difficulty.

Simultaneously destroy 2 cores in Guardians on Heroic difficulty.

Complete every Mission of the game by yourself on Legendary difficulty.

Complete every co-op Mission on Heroic difficulty.

Complete any Mission with 3+ Skulls active on Heroic difficulty.

Qualify for a Competitive Skill Rating.

Complete a mission in Score Attack with at least 10,000 points.

Reach 50,000 points in Score Attack with a Skull multiplier of x2 or higher.

Complete a mission in Score Attack co-op, with all participants scoring at least 200,000 points.

Beat the par time of a mission in Score Attack.

Complete a mission in Score Attack with at least 500,000 points.

Successfully complete 5 Warzone Firefight matches.

Complete a Warzone Firefight match on 6 unique maps.

Earn a Mythic Boss Takedown in a Warzone Firefight match.