Deal a total of 10,000 damage to players via headshots

Down an enemy while you have less than 10% health

Down 4 enemies in one round

Fully upgrade a primary weapon

Got 100 eliminations in Nexus

Got 100 eliminations in Nexus

Pass through a refuge shower with 3 Hivebusters in the same shower cubicle

Passed through a refuge shower with 3 Hivebusters in the same shower cubicle

Use the Scrubber Room to slow down the Venom in Escape

Used the Scrubber Room to slow down the Venom in Escape

Win a 4v4 game

Collect 50 Items

Collect a Painted Item

Collect 5 Items

Reached Character Level 15 with Combat Medic, Pilot, Gunner, Robotics Expert or Brawler

Reach Character Level 15 with Combat Medic, Pilot, Gunner, Robotics Expert or Brawler

Completed a Featured Horde Map from Operation 4

Completed a Featured Horde Map from Operation 4

Re-upped!

Re-up!

Reached the rank of Sergeant in Tour of Duty

Reach the rank of Sergeant in Tour of Duty

Win a Match of Arcade Blitz with the most Points earned in a Ring

Won a Match of Arcade Blitz with the most Points earned in a Ring

Reached the rank of Corporal in a Tour of Duty

Reach the rank of Corporal in a Tour of Duty

Play a match of Arcade

Played a match of Arcade

Complete all campaigns on Normal difficulty.

Complete all campaigns on Heroic difficulty.

Complete all campaigns on Legendary difficulty.

Halo 4: Beat the par score on Midnight.

Halo 4: Complete every level of the game on Normal difficulty.

Complete all campaigns on Easy difficulty.

Halo 4: Complete Midnight.

Halo 4: Complete every level of the game on Heroic difficulty.

Halo 4: Complete every level of the game on Legendary difficulty.

Halo 4: Complete every level of the game on Easy difficulty.

Halo 4: Complete Midnight.

Halo 4: Beat the par score on Midnight.

Halo 4: Complete every level of the game on Normal difficulty.

Halo 4: Complete every level of the game on Heroic difficulty.

Halo 4: Complete every level of the game on Legendary difficulty.

Halo 4: Complete every level of the game on Easy difficulty.

Complete all campaigns on Easy difficulty.

Complete all campaigns on Normal difficulty.

Complete all campaigns on Heroic difficulty.

Complete all campaigns on Legendary difficulty.

Halo 4: Activate Terminal 7 on Midnight.

Halo 4: Activate all Halo 4 Terminals.

Halo 4: Activate Terminal 7 on Midnight.

Halo 4: Activate all Halo 4 Terminals.

Halo 4: Complete Composer.

Halo 4: Beat the par score on Composer.

Halo 4: Complete Composer.

Halo 4: Beat the par score on Composer.

Halo 4: Activate Terminal 6 on Composer.

Halo 4: Activate Terminal 6 on Composer.

Halo 4: Complete Shutdown.

Halo 4: Beat the par score on Shutdown.

Halo 4: Complete Shutdown.

Halo 4: Beat the par score on Shutdown.

Halo 4: Activate Terminal 5 on Shutdown.

Halo 4: Activate Terminal 5 on Shutdown.

Completed 3 Objectives for Tour of Duty in a day

Completed 3 Objectives for Tour of Duty in a day

Get a kill with 3 Perks active in Horde

Got a kill with 3 Perks active in Horde

Make a new Ally in Gears Allies

Made a new Ally in Gears Allies

Won a Match of Horde Frenzy (any difficulty)

Won a Match of Horde Frenzy (any difficulty)

Pick up another player's weapon and down an enemy with it

Down 10 enemies

Purchase 3 perks in a single match

Down an enemy without taking return damage

Complete the tutorial

Turn to stone

Acquire the Lamp.

Halo 4: Complete Reclaimer.

Halo 4: Beat the par score on Reclaimer.

Halo 4: Complete Reclaimer.

Halo 4: Beat the par score on Reclaimer.

Halo 4: Activate Terminal 4 on Reclaimer.

Halo 4: Activate Terminal 4 on Reclaimer.

Kill 100 Crawlers.

Kill 100 Crawlers.

Collect 10,000 campaign or playlist medals.

Collect 10,000 campaign or playlist medals.

Halo 4: Beat the par score on Infinity.