| Icon
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Name
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Requirement
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Credit Reward
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Date
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| Weekly Challenges
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Multiplicative
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Earn 200 Multikills in multiplayer Matchmaking this week.
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25000 cR
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January 30-February 5, 2012
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Single Wield
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Earn 200 kills with small arms weapons in multiplayer Matchmaking.
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20343 cR
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January 23–29, 2012
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Nightfall: LASO
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Complete Nightfall, Legendary, All Skulls On (LASO).
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12000 cR
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January 16–22, 2012
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Dedication/Time
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Complete 16 Daily Challenges this week.
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30343 cR
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January 9–15, 2012
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All in a Week's Work
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Kill 500 enemies in multiplayer Matchmaking this week.
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20343 cR
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January 2–8, 2012
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Co-op Dash
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Clear any Campaign mission on Heroic, in co-op, in 15 minutes or less.
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15343 cR
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December 26, 2011 – January 1, 2012
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| Daily Challenges
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Covenant-cide
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Kill 120 enemies in Firefight Matchmaking.
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3200 cR
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January 30, 2012
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Flat Tire
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Kill 5 enemy vehicles in Firefight Matchmaking.
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2000 cR
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January 30, 2012
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Five-time Champ
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Win 5 games in multiplayer Matchmaking.
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4343 cR
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January 30, 2012
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The Love of the Game
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Complete 17 games in multiplayer Matchmaking.
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3700 cR
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January 30, 2012
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One Spartan Army
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Kill 150 enemies in Firefight Matchmaking.
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2250 cR
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January 29, 2012
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Short, Controlled Bursts
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Kill 200 enemies with automatic weapons in the Campaign today.
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3000 cR
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January 29, 2012
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Roast 'em, Toast 'em
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Kill 10 enemies while jet-packing in Exodus on Normal.
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2400 cR
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January 29, 2012
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This is My Rifle...
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Earn 60 kills with precision weapons in multiplayer Matchmaking.
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2700 cR
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January 29, 2012
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Blastin' and Relaxin'
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Kill 180 enemies in any game mode in Reach.
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2343 cR
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January 28, 2012
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T-Hug It Out
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Kill 7 enemies with close quarters combat in a multiplayer Matchmaking game.
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1400 cR
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January 28, 2012
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Fourth Horseman
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Earn 5 multikills in a multiplayer Matchmaking game.
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2500 cR
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January 28, 2012
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Make a Wish...
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Earn a Running Riot in a multiplayer Matchmaking game.
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5000 cR
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January 28, 2012
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Covenant-cide
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Kill 120 enemies in Firefight Matchmaking.
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3200 cR
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January 26, 2012
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Demon
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Kill 40 Elites in Firefight Matchmaking.
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2800 cR
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January 26, 2012
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Flat Tire
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Kill 5 enemy vehicles in Firefight Matchmaking.
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2000 cR
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January 26, 2012
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J.H. Death Machine
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Kill 70 enemies in Firefight Matchmaking with the Grenade Launcher.
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1250 cR
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January 26, 2012
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More than a Handful
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Kill 125 enemies in multiplayer Matchmaking.
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2500 cR
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January 25, 2012
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Katanarama
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Kill 1 enemies using the Energy Sword in Firefight Matchmaking.
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1000 cR
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January 25, 2012
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Iron Will
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Complete a Campaign mission alone on Heroic or harder with the Iron Skull on.
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2500 cR
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January 25, 2012
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Who's the Big Winner?
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Win 15 games in multiplayer Matchmaking.
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3000 cR
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January 25, 2012
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Blastin' and Relaxin'
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Kill 180 enemies in any game mode in Reach.
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2343 cR
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January 24, 2012
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The House of Blue Leaves
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Kill 177 enemies in a single Firefight Matchmaking game on Heroic.
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1300 cR
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January 24, 2012
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The Little Guys
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Kill 135 Grunts in Campaign today on Normal or harder.
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1200 cR
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January 24, 2012
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The Dream Shake
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Earn 4 Double Kills in the same match in multiplayer Matchmaking.
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4000 cR
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January 24, 2012
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Covenant-cide
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Kill 120 enemies in Firefight Matchmaking.
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3200 cR
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January 23, 2012
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Gunslinger
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Kill 150 enemies in multiplayer Matchmaking.
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5500 cR
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January 23, 2012
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Short, Controlled Bursts
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Kill 200 enemies with automatic weapons in the Campaign today.
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3000 cR
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January 23, 2012
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Just a Shower
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Complete any Campaign mission on Normal or harder with Thunderstorm on.
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4000 cR
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January 23, 2012
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Blastin' and Relaxin'
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Kill 180 enemies in any game mode in Reach.
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2343 cR
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January 22, 2012
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Who's the Big Winner?
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Win 12 games in multiplayer Matchmaking.
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10000 cR
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January 22, 2012
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Heroic Court
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Kill 125 enemies on Courtyard on Heroic in Firefight Matchmaking.
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1000 cR
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January 22, 2012
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Return of the Mack
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Kill 50 Elites in Campaign today on Normal or harder.
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1700 cR
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January 22, 2012
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Shootin' and Lootin'
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Kill 400 enemies in any game mode in Reach.
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4000 cR
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January 21, 2012
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Sweep the Leg
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Perform an Assassination in a multiplayer Matchmaking game.
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2000 cR
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January 21, 2012
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Close Talking
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Earn 100 kills with close quarters combat in multiplayer Matchmaking.
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1500 cR
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January 21, 2012
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It was the Winter...
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Complete Winter Contingency on Legendary without dying.
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3000 cR
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January 21, 2012
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More than a Handful
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Kill 77 enemies in multiplayer Matchmaking.
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3500 cR
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January 20, 2012
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This is My Rifle...
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Earn 20 kills with precision weapons in multiplayer Matchmaking.
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1000 cR
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January 20, 2012
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Double Nickels
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Earn 2 Killing Sprees in a multiplayer Matchmaking game.
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3000 cR
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January 20, 2012
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Mythic Bustin'
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Complete a Campaign mission on Heroic or harder with the Mythic Skull on.
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1000 cR
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January 20, 2012
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Gunslinger
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Kill 40 enemies in multiplayer Matchmaking.
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3500 cR
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January 18, 2012
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A Satisfied Thirst
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Kill 200 Grunts in Firefight Matchmaking.
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3000 cR
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January 18, 2012
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Foggy Notion
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Complete a Campaign mission on Heroic with Cloud and Famine on.
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1500 cR
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January 18, 2012
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Vengeance Found
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Earn your 'Revenge' in a multiplayer Matchmaking game.
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2000 cR
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January 18, 2012
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One Spartan Army
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Kill 250 enemies in Firefight Matchmaking.
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3500 cR
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January 17, 2012
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Overlook's Overwatch
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Kill 150 enemies on Overlook in Firefight Matchmaking.
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1125 cR
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January 17, 2012
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Clip It. Share It.
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Make a clip from your Local files and upload it to your File Share.
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2500 cR
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January 17, 2012
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Up Close and Personal
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Kill 5 enemies with close quarters combat in a multiplayer Matchmaking game.
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2343 cR
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January 17, 2012
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Blastin' and Relaxin'
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Kill 180 enemies in any game mode in Reach.
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2343 cR
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January 15, 2012
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There Are Many Like...
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Kill 200 enemies with precision weapons in the Campaign today.
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1500 cR
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January 15, 2012
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...Is a Virtue
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Score 40,000 points in any Campaign mission with less than 3 deaths.
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2000 cR
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January 15, 2012
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Killing Frenzy
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Earn a Killing Frenzy in a multiplayer Matchmaking game.
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4000 cR
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January 15, 2012
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Shootin' and Lootin'
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Kill 250 enemies in any game mode in Reach.
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3800 cR
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January 14, 2012
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Cook 'em, Clean 'em!
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Kill 20 enemies in multiplayer Matchmaking while you're jet-packing.
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2400 cR
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January 14, 2012
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That Pink Mist
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Kill 40 enemies with a Supercombine from the Needler or Needle Rifle in Firefight Matchmaking.
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1000 cR
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January 14, 2012
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Iron Will
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Complete a Campaign mission alone on Heroic or harder with the Iron Skull on.
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2500 cR
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January 14, 2012
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More than a Handful
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Kill 25 enemies in multiplayer Matchmaking.
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2000 cR
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January 13, 2012
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Single Wield
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Earn 77 kills with small arms weapons in multiplayer Matchmaking.
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2800 cR
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January 13, 2012
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Go Right Ahead Folks
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Earn a First Strike in a multiplayer Matchmaking game.
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2000 cR
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January 13, 2012
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Make a Wish...
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Earn a Running Riot in a multiplayer Matchmaking game.
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5000 cR
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January 13, 2012
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Covenant-cide
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Kill 120 enemies in Firefight Matchmaking.
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3200 cR
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January 12, 2012
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Hyper Lethal Vector
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Kill 100 enemies with headshots in Firefight Matchmaking.
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3000 cR
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January 12, 2012
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Just Holdout
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Kill 150 enemies on Holdout in Firefight Matchmaking.
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2500 cR
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January 12, 2012
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Weapon Swap
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Earn 10 sprees in a Firefight Matchmaking game on Heroic or harder.
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2000 cR
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January 12, 2012
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Gunslinger
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Kill 75 enemies in multiplayer Matchmaking.
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2250 cR
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January 11, 2012
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A Simple Spree
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Earn any spree in Firefight Matchmaking.
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2000 cR
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January 11, 2012
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Cannon Fodder
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Kill 50 infantry-class foes in the Campaign today.
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1000 cR
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January 11, 2012
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Throwing Fireballs
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Kill 8 enemies with grenades in a multiplayer Matchmaking game.
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1600 cR
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January 11, 2012
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One Spartan Army
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Kill 150 enemies in Firefight Matchmaking.
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2250 cR
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January 10, 2012
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Flat Tire
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Kill 5 enemy vehicles in Firefight Matchmaking.
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2000 cR
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January 10, 2012
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Leadership Element
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Kill 45 enemy leaders in the Campaign today.
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2200 cR
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January 10, 2012
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The Magic Number
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Complete 7 games in multiplayer Matchmaking.
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3000 cR
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January 10, 2012
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Fire When Ready
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Kill 30 enemies in multiplayer Matchmaking
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1100 cR
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January 9, 2012
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Blastin' and Relaxin'
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Kill 180 enemies in any game mode in Reach.
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2343 cR
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January 9, 2012
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Short, Controlled Bursts
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Kill 100 enemies with automatic weapons in the Campaign today.
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2500 cR
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January 9, 2012
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Participation Counts
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Complete 4 games in multiplayer Matchmaking.
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2400 cR
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January 9, 2012
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One Spartan Army
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Kill 250 enemies in Firefight Matchmaking.
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3500 cR
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January 8, 2012
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Hyper Lethal Vector
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Kill 200 enemies with headshots in Firefight Matchmaking.
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3000 cR
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January 8, 2012
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More Like In Post
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Kill 125 enemies on Outpost in Firefight Matchmaking.
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1100 cR
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January 8, 2012
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L.D. Exodus
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Complete Exodus, without dying, on Legendary with Mythic, Thunderstorm, Tilt, and Tough Luck on.
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5000 cR
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January 8, 2012
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Blastin' and Relaxin'
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Kill 180 enemies in any game mode in Reach.
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2343 cR
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January 5, 2012
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Demon
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Kill 30 Elites in Firefight Matchmaking.
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2400 cR
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January 5, 2012
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Be Their Huckleberry
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Kill 100 enemies in Firefight Matchmaking with the pistol.
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2500 cR
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January 5, 2012
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Weapon Swap
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Earn 10 sprees in a Firefight Matchmaking game on Heroic or harder.
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2000 cR
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January 5, 2012
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Gunslinger
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Kill 150 enemies in multiplayer Matchmaking.
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5500 cR
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January 4, 2012
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A Walk in the...
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Kill 1000 enemies on Beachhead in Firefight Matchmaking.
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3000 cR
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January 4, 2012
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L.D. Pillar
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Complete The Pillar of Autumn, without dying, with Mythic, Thunderstorm, Tilt, and Touch Luck on.
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5000 cR
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January 4, 2012
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Not as Clumsy or Random...
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Earn 5 kills with precision weapons in a multiplayer Matchmaking game.
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2000 cR
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January 4, 2012
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Covenant-cide
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Kill 120 enemies in Firefight Matchmaking.
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3200 cR
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January 3, 2012
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Just Holdout
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Kill 150 enemies on Holdout in Firefight Matchmaking.
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2500 cR
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January 3, 2012
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It was the Winter...
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Complete Winter Contingency on Legendary without dying.
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3000 cR
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January 3, 2012
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Up Close and Personal
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Kill 5 enemies with close quarters combat in a multiplayer Matchmaking game.
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2343 cR
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January 3, 2012
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One Spartan Army
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Kill 100 enemies in Firefight Matchmaking.
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2000 cR
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January 2, 2012
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Support Structure
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Earn 30 assists in Firefight Matchmaking.
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2250 cR
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January 2, 2012
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Hyper Lethal Vector
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Kill 150 enemies with headshots in Firefight Matchmaking.
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1125 cR
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January 2, 2012
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Inclement Weather
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Complete a Campaign mission on Heroic or harder with the Thunderstorm Skull on.
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3000 cR
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January 2, 2012
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Light Fare
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Kill 100 enemies in any game mode in Reach.
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3000 cR
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January 1, 2012
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Cook 'em, Clean 'em!
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Kill 5 enemies in multiplayer Matchmaking while you're jet-packing.
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1000 cR
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January 1, 2012
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L.D. Pillar
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Complete The Pillar of Autumn, without dying, with Mythic, Thunderstorm, Tilt, and Touch Luck on.
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5000 cR
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January 1, 2012
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The Little Guys
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Kill 125 Grunts in Campaign today on Normal or harder.
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2000 cR
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January 1, 2012
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