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23 / 44 (53%)
Gamerscore 500 / 1000

Found 44 achievements for Gamerscore 1000

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  • The Silent Cartographer 1,258
    Complete the level “The Silent Cartographer” on any difficulty.
    Main Storyline

    Unlocked 06-21-2012 03:54 AM

    Gamerscore 25
    Score
    69%
    Common
  • Assault on the Control Room 1,155
    Complete the level “Assault on the Control Room” on any difficulty.
    Main Storyline

    Unlocked 01-23-2018 11:28 PM

    Gamerscore 25
    Score
    63%
    Common
  • Pillar of Autumn 1,646
    Complete the level “Pillar of Autumn” on any difficulty.
    Main Storyline

    Unlocked 06-03-2012 05:55 AM

    Gamerscore 25
    Score
    90%
    Common
  • Halo 1,449
    Complete the level “Halo” on any difficulty.
    Main Storyline

    Unlocked 06-20-2012 04:26 AM

    Gamerscore 25
    Score
    80%
    Common
  • Truth and Reconciliation 1,318
    Complete the level “Truth and Reconciliation” on any difficulty.
    Main Storyline

    Unlocked 06-20-2012 05:55 AM

    Gamerscore 25
    Score
    72%
    Common
  • 343 Guilty Spark 1,101
    Complete the level “343 Guilty Spark” on any difficulty.
    Main Storyline
    Gamerscore 25
    Score
    60%
    Common
  • The Library 1,085
    Complete the level “The Library” on any difficulty.
    Main Storyline
    Gamerscore 25
    Score
    59%
    Common
  • Two Betrayals 1,020
    Complete the level “Two Betrayals” on any difficulty.
    Main Storyline

    Unlocked 06-20-2012 07:06 AM

    Gamerscore 25
    Score
    56%
    Common
  • Keyes 1,009
    Complete the level “Keyes” on any difficulty.
    Main Storyline

    Unlocked 06-13-2017 05:29 AM

    Gamerscore 25
    Score
    55%
    Common
  • The Maw 998
    Complete the level “The Maw” on any difficulty.
    Main Storyline
    Gamerscore 25
    Score
    55%
    Common
  • Tsantsa 823
    Complete any level with at least three skulls active on Heroic difficulty or higher.
    Difficulty

    Unlocked 06-03-2012 05:55 AM

    Gamerscore 50
    Score
    45%
    Uncommon
  • What have we here? 1,512
    Read a terminal.
    Collectible

    Unlocked 06-03-2012 05:25 AM

    Gamerscore 10
    Score
    83%
    Common
  • Heavy Reading 928
    Read half the terminals hidden throughout the campaign.
    Collectible

    Unlocked 05-17-2014 09:49 PM

    Gamerscore 25
    Score
    51%
    Common
  • Dear Diary... 723
    Read all of the terminals hidden throughout the campaign.
    Collectible
    Gamerscore 50
    Score
    39%
    Uncommon
  • Looks like the Oddball 1,325
    Find your first campaign skull.
    Collectible

    Unlocked 06-03-2012 05:23 AM

    Gamerscore 10
    Score
    73%
    Common
  • Skulls Taken! 799
    Locate half of the skulls hidden throughout the campaign.
    Collectible
    Gamerscore 25
    Score
    44%
    Uncommon
  • Headhunter 676
    Locate all the skulls hidden throughout the campaign.
    Collectible
    Gamerscore 50
    Score
    37%
    Uncommon
  • Birth of a Spartan 867
    Complete every level of the game on Normal difficulty.
    Main Storyline Difficulty Stackable
    Gamerscore 10
    Score
    47%
    Uncommon
  • Believe in a Hero 670
    Complete every level of the game on Heroic difficulty.
    Main Storyline Difficulty Stackable
    Gamerscore 20
    Score
    36%
    Uncommon
  • Living Legend 619
    Complete every level of the game on Legendary difficulty.
    Main Storyline Difficulty
    Gamerscore 50
    Score
    34%
    Uncommon
  • Standard Operating Brocedure 1,180
    Complete any level on Normal difficulty cooperatively.
    Difficulty Stackable

    Unlocked 06-03-2012 05:55 AM

    Gamerscore 10
    Score
    65%
    Common
  • Brovershield 1,044
    Complete any level on Heroic difficulty cooperatively.
    Difficulty Stackable

    Unlocked 06-03-2012 05:55 AM

    Gamerscore 20
    Score
    57%
    Common
  • Bro Hammer 991
    Complete any level on Legendary difficulty cooperatively.
    Difficulty

    Unlocked 06-03-2012 05:55 AM

    Gamerscore 50
    Score
    54%
    Common
  • He’s Unstoppable! 693
    Complete any level on Heroic difficulty or higher without taking health damage.
    Difficulty
    Gamerscore 20
    Score
    38%
    Uncommon
  • Overshields are for Sissies 942
    Complete the level “Pillar of Autumn” on Legendary without picking up an Overshield.
    Difficulty

    Unlocked 06-03-2012 05:55 AM

    Gamerscore 10
    Score
    52%
    Common
  • Walk it Off 873
    Complete the level “Pillar of Autumn” on Legendary without picking up a health kit.
    Difficulty

    Unlocked 06-03-2012 05:55 AM

    Gamerscore 25
    Score
    48%
    Uncommon
  • No-Fly Zone 800
    Destroy three of the four Banshees on “Halo” on any difficulty during a single play-through.

    Unlocked 06-20-2012 04:16 AM

    Gamerscore 10
    Score
    44%
    Uncommon
  • How Pedestrian 838
    Complete the level “Halo” on any difficulty without entering a vehicle.

    Unlocked 06-20-2012 04:26 AM

    Gamerscore 25
    Score
    46%
    Uncommon
  • Close Quarters Combat 1,035
    Complete the level “Truth and Reconciliation” with at least four rounds left in your Sniper Rifle.
    Gamerscore 25
    Score
    57%
    Common
  • I’ll Be Taking That! 1,019
    Pilot a Banshee on the level “Assault on the Control Room.”

    Unlocked 01-23-2018 11:24 PM

    Gamerscore 25
    Score
    56%
    Common
  • This One's for Jenkins! 728
    Kill 50 Flood Combat Forms on the level “343 Guilty Spark” on Heroic difficulty or higher.
    Difficulty
    Gamerscore 10
    Score
    40%
    Uncommon
  • That Just Happened 511
    Complete the level “The Library” on Heroic difficulty or higher without dying.
    Difficulty
    Gamerscore 10
    Score
    28%
    Rare
  • Speed Reader 520
    Complete the level “The Library” on Legendary difficulty in 30 minutes or less.
    Difficulty Time-Limited
    Gamerscore 25
    Score
    28%
    Rare
  • Look Out for the Little Guys 554 1
    Complete the level “Two Betrayals” on Heroic difficulty or higher without killing any Grunts.
    Difficulty
    Gamerscore 10
    Score
    30%
    Uncommon
  • Leave It Where It Lay 584
    Complete the level “Two Betrayals” on Legendary difficulty without picking up a new weapon.
    Difficulty
    Gamerscore 25
    Score
    32%
    Uncommon
  • Popcorn.gif 725
    Kill 100 Flood Infection Forms on the level “Keyes” on Heroic difficulty or above.
    Difficulty

    Unlocked 09-09-2013 02:16 AM

    Gamerscore 25
    Score
    40%
    Uncommon
  • All According to Plan... 741
    Kill all the enemies in the first encounter of “Truth and Reconciliation” without being detected.

    Unlocked 02-26-2018 04:42 AM

    Gamerscore 10
    Score
    40%
    Uncommon
  • Beachhead 739
    Storm the beach of “The Silent Cartographer” with no marine casualties on Heroic or Legendary.
    Difficulty

    Unlocked 06-21-2012 02:51 AM

    Gamerscore 10
    Score
    40%
    Uncommon
  • Grenadier 673
    Escape the map room in “The Silent Cartographer” without firing a shot on Heroic or Legendary.
    Difficulty
    Gamerscore 25
    Score
    37%
    Uncommon
  • Wraith Hunter 665
    Destroy four Wraith tanks in “Assault on the Control Room” with the Scorpion tank, in a single play.

    Unlocked 12-13-2017 09:19 AM

    Gamerscore 10
    Score
    36%
    Uncommon
  • Breaking Quarantine 734
    Escape the Forerunner facility on the level “343 Guilty Spark” in 21 minutes or less.
    Time-Limited
    Gamerscore 25
    Score
    40%
    Uncommon
  • Tying Up Loose Ends 565
    Kill every Elite on the level “Keyes” on Heroic difficulty or above.
    Difficulty
    Gamerscore 10
    Score
    31%
    Uncommon
  • This Side Up 654
    Complete the Warthog ride on the level “The Maw” without being forcibly ejected from your vehicle.
    Gamerscore 10
    Score
    36%
    Uncommon
  • Never Tell Me the Odds 538
    Escape “The Maw” on Legendary with at least a minute left on the count down.
    Difficulty Time-Limited
    Gamerscore 25
    Score
    29%
    Rare

Showing 44 of 44 achievements total