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Achievements (Halo: Combat Evolved Anniversary): Difference between revisions

From Halopedia, the Halo wiki

m (→‎List: Replacing gamerscore icon)
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==List==
==List==
{|align="center" cellpadding="3" style="font-size:90%" border="1"
{|class="wikitable"
|-align="center"
|-align="center"
!Icon
!Icon
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!colspan="4"|Campaign
!colspan="4"|Campaign
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement Pillar of Autumn.png]]
|[[File:HCEA Achievement Pillar of Autumn.png]]
|[[Pillar of Autumn (achievement)|Pillar of Autumn]]
|[[Pillar of Autumn (achievement)|Pillar of Autumn]]
|Finish the first mission of the [[Campaign]] on any difficulty.
|Finish the first mission of the [[Campaign]] on any difficulty.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement Halo.png]]
|[[File:HCEA Achievement Halo.png]]
|[[Halo (achievement)|Halo]]
|[[Halo (achievement)|Halo]]
|Finish the second mission of the Campaign on any difficulty.
|Finish the second mission of the Campaign on any difficulty.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement Truth and Reconciliation.png]]  
|[[File:HCEA Achievement Truth and Reconciliation.png]]  
|[[Truth and Reconciliation (achievement)|Truth and Reconciliation]]
|[[Truth and Reconciliation (achievement)|Truth and Reconciliation]]
|Finish the third mission of the Campaign on any difficulty.
|Finish the third mission of the Campaign on any difficulty.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement The Silent Cartographer.png]]  
|[[File:HCEA Achievement The Silent Cartographer.png]]  
|[[The Silent Cartographer (achievement)|The Silent Cartographer]]
|[[The Silent Cartographer (achievement)|The Silent Cartographer]]
|Finish the fourth mission of the Campaign on any difficulty.
|Finish the fourth mission of the Campaign on any difficulty.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement Assault on the Control Room.png]]  
|[[File:HCEA Achievement Assault on the Control Room.png]]  
|[[Assault on the Control Room|Assault on the Control Room (achievement)|Assault on the Control Room]]
|[[Assault on the Control Room|Assault on the Control Room (achievement)|Assault on the Control Room]]
|Finish the fifth mission of the Campaign on any difficulty.
|Finish the fifth mission of the Campaign on any difficulty.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement 343 Guilty Spark.png]]  
|[[File:HCEA Achievement 343 Guilty Spark.png]]  
|[[343 Guilty Spark (achievement)|343 Guilty Spark]]
|[[343 Guilty Spark (achievement)|343 Guilty Spark]]
|Finish the sixth mission of the Campaign on any difficulty.
|Finish the sixth mission of the Campaign on any difficulty.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement The Library.png]]  
|[[File:HCEA Achievement The Library.png]]  
|[[The Library (achievement)|The Library]]
|[[The Library (achievement)|The Library]]
|Finish the seventh mission of the Campaign on any difficulty.
|Finish the seventh mission of the Campaign on any difficulty.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement Two Betrayals.png]]
|[[File:HCEA Achievement Two Betrayals.png]]
|[[Two Betrayals (achievement)|Two Betrayals]]
|[[Two Betrayals (achievement)|Two Betrayals]]
|Finish the eighth mission of the Campaign on any difficulty.
|Finish the eighth mission of the Campaign on any difficulty.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement Keyes.png]]   
|[[File:HCEA Achievement Keyes.png]]   
|[[Keyes (achievement)|Keyes]]
|[[Keyes (achievement)|Keyes]]
|Finish the ninth mission of the Campaign on any difficulty..
|Finish the ninth mission of the Campaign on any difficulty..
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement The Maw.png]]  
|[[File:HCEA Achievement The Maw.png]]  
|[[The Maw (achievement)|The Maw]]
|[[The Maw (achievement)|The Maw]]
|Finish the final mission of the Campaign on any difficulty..
|Finish the final mission of the Campaign on any difficulty..
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement Birth of a Spartan.png]]  
|[[File:HCEA Achievement Birth of a Spartan.png]]  
|[[Birth of a Spartan (achievement)|Birth of a Spartan]]
|[[Birth of a Spartan (achievement)|Birth of a Spartan]]
|Finish the Campaign on [[Normal]].
|Finish the Campaign on [[Normal]].
|10 [[File:HP Icon Gamerscore.png|20px]]
|10 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement Believe in a Hero.png]]
|[[File:HCEA Achievement Believe in a Hero.png]]
|[[Believe in a Hero]]
|[[Believe in a Hero]]
|Finish the Campaign on [[Heroic]]<br />(unlocks achievement for Normal, if not earned).
|Finish the Campaign on [[Heroic]]<br />(unlocks achievement for Normal, if not earned).
|20 [[File:HP Icon Gamerscore.png|20px]]
|20 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement Living Legend.png]]   
|[[File:HCEA Achievement Living Legend.png]]   
|[[Living Legend]]
|[[Living Legend]]
|Finish the Campaign on [[Legendary]]<br />(unlocks achievement for Normal and Heroic, if not earned).
|Finish the Campaign on [[Legendary]]<br />(unlocks achievement for Normal and Heroic, if not earned).
|50 [[File:HP Icon Gamerscore.png|20px]]
|50 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement Standard Operating Brocedure.png]]   
|[[File:HCEA Achievement Standard Operating Brocedure.png]]   
|[[Standard Operating Brocedure]]
|[[Standard Operating Brocedure]]
|Complete any level on Normal difficulty [[Cooperative Play|cooperatively]].
|Complete any level on Normal difficulty [[Cooperative Play|cooperatively]].
|10 [[File:HP Icon Gamerscore.png|20px]]
|10 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement Brovershield.png]]
|[[File:HCEA Achievement Brovershield.png]]
|[[Brovershield]]
|[[Brovershield]]
|Complete any level on Heroic difficulty cooperatively.
|Complete any level on Heroic difficulty cooperatively.
|20 [[File:HP Icon Gamerscore.png|20px]]
|20 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement Brohammer.png]]  
|[[File:HCEA Achievement Brohammer.png]]  
|[[Bro Hammer]]
|[[Bro Hammer]]
|Complete any level on Legendary difficulty cooperatively.
|Complete any level on Legendary difficulty cooperatively.
|50 [[File:HP Icon Gamerscore.png|20px]]
|50 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HCEA Achievement He's Unstoppable!.png]]
|[[File:HCEA Achievement He's Unstoppable!.png]]
|[[He's Unstoppable!]]
|[[He's Unstoppable!]]
|Complete any level on Heroic difficulty or higher without taking health damage.
|Complete any level on Heroic difficulty or higher without taking health damage.
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!colspan="4"|Level-specific
!colspan="4"|Level-specific
|-align="center"
|-align="center"
|style="background:black"|[[File:HR Achievement Overshields are for Sissies.png]]   
|[[File:HR Achievement Overshields are for Sissies.png]]   
|[[Overshields are for Sissies]]
|[[Overshields are for Sissies]]
|Complete the level "''[[The Pillar of Autumn (Halo: Combat Evolved level)|Pillar of Autumn]]''" on Legendary without picking up an [[Overshield]].
|Complete the level "''[[The Pillar of Autumn (Halo: Combat Evolved level)|Pillar of Autumn]]''" on Legendary without picking up an [[Overshield]].
|10 [[File:HP Icon Gamerscore.png|20px]]
|10 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HR Achievement Walk it Off.png]]  
|[[File:HR Achievement Walk it Off.png]]  
|[[Walk it Off]]
|[[Walk it Off]]
|Complete the level "''Pillar of Autumn''" on Legendary without picking up a health kit.
|Complete the level "''Pillar of Autumn''" on Legendary without picking up a health kit.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HR Achievement No-Fly Zone.png]]   
|[[File:HR Achievement No-Fly Zone.png]]   
|[[No-Fly Zone]]
|[[No-Fly Zone]]
|Destroy three [[Type-26 Ground Support Aircraft|Banshees]] in the level [[Halo (Halo: Combat Evolved level)|Halo]] on any difficulty.
|Destroy three [[Type-26 Ground Support Aircraft|Banshees]] in the level [[Halo (Halo: Combat Evolved level)|Halo]] on any difficulty.
|10 [[File:HP Icon Gamerscore.png|20px]]
|10 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HR Achievement How Pedestrian.png‎]]
|[[File:HR Achievement How Pedestrian.png‎]]
|[[How Pedestrian]]
|[[How Pedestrian]]
|Complete the level "''Halo''" on any difficulty without entering a vehicle.
|Complete the level "''Halo''" on any difficulty without entering a vehicle.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HR Achievement All According to Plan.png]]   
|[[File:HR Achievement All According to Plan.png]]   
|[[All According to Plan...]]
|[[All According to Plan...]]
|Kill all the enemies in the first encounter of the level "''[[The Truth and Reconciliation|Truth and Reconciliation]]''" without being detected.
|Kill all the enemies in the first encounter of the level "''[[The Truth and Reconciliation|Truth and Reconciliation]]''" without being detected.
|10 [[File:HP Icon Gamerscore.png|20px]]
|10 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:HR Achievement Close Quarters Combat.png]]   
|[[File:HR Achievement Close Quarters Combat.png]]   
|[[Close Quarters Combat]]
|[[Close Quarters Combat]]
|Complete the level "''Truth and Reconciliation''" with at least four rounds left in your Sniper Rifle.
|Complete the level "''Truth and Reconciliation''" with at least four rounds left in your Sniper Rifle.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH24.png]]   
|[[File:ACH24.png]]   
|[[Beachhead (achievement)|Beachhead]]
|[[Beachhead (achievement)|Beachhead]]
|Storm the Beach on the level "''[[The Silent Cartographer]]''" without losing any marines on Heroic difficulty or above.
|Storm the Beach on the level "''[[The Silent Cartographer]]''" without losing any marines on Heroic difficulty or above.
|10 [[File:HP Icon Gamerscore.png|20px]]
|10 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH25.png]]   
|[[File:ACH25.png]]   
|[[Grenadier (achievement)|Grenadier]]
|[[Grenadier (achievement)|Grenadier]]
|After activating the map in the level "''The Silent Cartographer''" complete the rest of your mission without firing a shot on Heroic difficulty or above.
|After activating the map in the level "''The Silent Cartographer''" complete the rest of your mission without firing a shot on Heroic difficulty or above.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH26.png]]   
|[[File:ACH26.png]]   
|[[Wraith Hunter]]
|[[Wraith Hunter]]
|Destroy four Wraith tanks in "''[[Assault on the Control Room]]"'' with the Scorpion tank, in a single play.
|Destroy four Wraith tanks in "''[[Assault on the Control Room]]"'' with the Scorpion tank, in a single play.
|10 [[File:HP Icon Gamerscore.png|20px]]
|10 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH27.png]]   
|[[File:ACH27.png]]   
|[[I'll Be Taking That!]]
|[[I'll Be Taking That!]]
|Pilot a Banshee on the level "''Assault on the Control Room"''.
|Pilot a Banshee on the level "''Assault on the Control Room"''.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH28.png]]
|[[File:ACH28.png]]
|[[This One's for Jenkins!]]
|[[This One's for Jenkins!]]
|Kill 50 Flood Combat Forms on the level "''[[343 Guilty Spark (level)|343 Guilty Spark]]''" on Heroic difficulty or higher.
|Kill 50 Flood Combat Forms on the level "''[[343 Guilty Spark (level)|343 Guilty Spark]]''" on Heroic difficulty or higher.
|10 [[File:HP Icon Gamerscore.png|20px]]
|10 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH29.png]]   
|[[File:ACH29.png]]   
|[[Breaking Quarantine (achievement)|Breaking Quarantine]]
|[[Breaking Quarantine (achievement)|Breaking Quarantine]]
|Escape the Forerunner facility on the level "''343 Guilty Spark''" in 21 minutes.
|Escape the Forerunner facility on the level "''343 Guilty Spark''" in 21 minutes.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH30.png]]   
|[[File:ACH30.png]]   
|[[That Just Happened]]
|[[That Just Happened]]
|Complete the level "''[[The Library]]''" on Heroic difficulty or higher without dying.
|Complete the level "''[[The Library]]''" on Heroic difficulty or higher without dying.
|10 [[File:HP Icon Gamerscore.png|20px]]
|10 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH31.png]]  
|[[File:ACH31.png]]  
|[[Speed Reader]]
|[[Speed Reader]]
|Complete the level "''The Library''" on Legendary difficulty in 30 minutes or less.
|Complete the level "''The Library''" on Legendary difficulty in 30 minutes or less.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH32.png]]  
|[[File:ACH32.png]]  
|[[Look Out for the Little Guys]]
|[[Look Out for the Little Guys]]
|Complete the level "''[[Two Betrayals]]''" on Heroic difficulty or higher without killing any Grunts.
|Complete the level "''[[Two Betrayals]]''" on Heroic difficulty or higher without killing any Grunts.
|10 [[File:HP Icon Gamerscore.png|20px]]
|10 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH33.png]]  
|[[File:ACH33.png]]  
|[[Leave It Where It Lay]]
|[[Leave It Where It Lay]]
|Complete the level "''Two Betrayals''" on Legendary difficulty without picking up a new weapon.
|Complete the level "''Two Betrayals''" on Legendary difficulty without picking up a new weapon.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH34.png]]  
|[[File:ACH34.png]]  
|[[Tying Up Loose Ends]]
|[[Tying Up Loose Ends]]
|Kill every Elite on the level "''[[Keyes]]''" on Heroic difficulty or above.
|Kill every Elite on the level "''[[Keyes]]''" on Heroic difficulty or above.
|10 [[File:HP Icon Gamerscore.png|20px]]
|10 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH35.png]]  
|[[File:ACH35.png]]  
|[[Popcorn.gif]]
|[[Popcorn.gif]]
|Kill 100 [[Pod infector|Flood Infection Forms]] on the level "''Keyes''" on Heroic difficulty or above.
|Kill 100 [[Pod infector|Flood Infection Forms]] on the level "''Keyes''" on Heroic difficulty or above.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH36.png]]   
|[[File:ACH36.png]]   
|[[This Side Up]]
|[[This Side Up]]
|Complete the Warthog ride on the level "''[[The Maw]]''" without being forcibly ejected from your vehicle.
|Complete the Warthog ride on the level "''[[The Maw]]''" without being forcibly ejected from your vehicle.
|10 [[File:HP Icon Gamerscore.png|20px]]
|10 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH37.png]]   
|[[File:ACH37.png]]   
|[[Never Tell Me the Odds]]
|[[Never Tell Me the Odds]]
|Complete the Warthog ride on the level "''The Maw''" on Legendary difficulty with at least a minute remaining on the countdown.
|Complete the Warthog ride on the level "''The Maw''" on Legendary difficulty with at least a minute remaining on the countdown.
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!colspan="4"|Terminals
!colspan="4"|Terminals
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH38.png]]   
|[[File:ACH38.png]]   
|[[What have we here?]]
|[[What have we here?]]
|Read a [[Terminal/Halo: Combat Evolved Anniversary|terminal]].
|Read a [[Terminal/Halo: Combat Evolved Anniversary|terminal]].
|10 [[File:HP Icon Gamerscore.png|20px]]
|10 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH39.png]]  
|[[File:ACH39.png]]  
|[[Heavy Reading]]
|[[Heavy Reading]]
|Read half the terminals hidden throughout the campaign.
|Read half the terminals hidden throughout the campaign.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH40.png]]  
|[[File:ACH40.png]]  
|[[Dear Diary...]]
|[[Dear Diary...]]
|Read all of the terminals hidden throughout the campaign.
|Read all of the terminals hidden throughout the campaign.
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!colspan="4"|Skulls
!colspan="4"|Skulls
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH41.png]]  
|[[File:ACH41.png]]  
|[[Looks like the Oddball]]
|[[Looks like the Oddball]]
|Find your first campaign [[Halo: Combat Evolved Anniversary Skulls|skull]].
|Find your first campaign [[Halo: Combat Evolved Anniversary Skulls|skull]].
|10 [[File:HP Icon Gamerscore.png|20px]]
|10 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH42.png]]
|[[File:ACH42.png]]
|[[Skulls Taken!]]
|[[Skulls Taken!]]
|Locate half of the skulls hidden throughout the campaign.
|Locate half of the skulls hidden throughout the campaign.
|25 [[File:HP Icon Gamerscore.png|20px]]
|25 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH43.png]]
|[[File:ACH43.png]]
|[[Headhunter (achievement)|Headhunter]]
|[[Headhunter (achievement)|Headhunter]]
|Locate all the skulls hidden throughout the campaign.
|Locate all the skulls hidden throughout the campaign.
|50 [[File:HP Icon Gamerscore.png|20px]]
|50 [[File:HP Icon Gamerscore.png|20px]]
|-align="center"
|-align="center"
|style="background:black"|[[File:ACH44.png]]
|[[File:ACH44.png]]
|[[Tsantsa]]
|[[Tsantsa]]
|Complete any level with three skulls active at Heroic difficulty or higher.
|Complete any level with three skulls active at Heroic difficulty or higher.

Revision as of 10:33, December 21, 2020

The achievements, as shown on Halo: Waypoint.

There are a total of 44 achievements in Halo: Combat Evolved Anniversary, which are worth a total of 1,000 Gamerscore.[1]

List

Icon Name Description Gamerscore
Campaign
HCEA Achievement Pillar of Autumn.png Pillar of Autumn Finish the first mission of the Campaign on any difficulty. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement Halo.png Halo Finish the second mission of the Campaign on any difficulty. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement Truth and Reconciliation.png Truth and Reconciliation Finish the third mission of the Campaign on any difficulty. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement The Silent Cartographer.png The Silent Cartographer Finish the fourth mission of the Campaign on any difficulty. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement Assault on the Control Room.png Assault on the Control Room (achievement)|Assault on the Control Room Finish the fifth mission of the Campaign on any difficulty. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement 343 Guilty Spark.png 343 Guilty Spark Finish the sixth mission of the Campaign on any difficulty. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement The Library.png The Library Finish the seventh mission of the Campaign on any difficulty. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement Two Betrayals.png Two Betrayals Finish the eighth mission of the Campaign on any difficulty. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement Keyes.png Keyes Finish the ninth mission of the Campaign on any difficulty.. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement The Maw.png The Maw Finish the final mission of the Campaign on any difficulty.. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement Birth of a Spartan.png Birth of a Spartan Finish the Campaign on Normal. 10 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement Believe in a Hero.png Believe in a Hero Finish the Campaign on Heroic
(unlocks achievement for Normal, if not earned).
20 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement Living Legend.png Living Legend Finish the Campaign on Legendary
(unlocks achievement for Normal and Heroic, if not earned).
50 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement Standard Operating Brocedure.png Standard Operating Brocedure Complete any level on Normal difficulty cooperatively. 10 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement Brovershield.png Brovershield Complete any level on Heroic difficulty cooperatively. 20 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement Brohammer.png Bro Hammer Complete any level on Legendary difficulty cooperatively. 50 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HCEA Achievement He's Unstoppable!.png He's Unstoppable! Complete any level on Heroic difficulty or higher without taking health damage. 20 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
Level-specific
HR Achievement Overshields are for Sissies.png Overshields are for Sissies Complete the level "Pillar of Autumn" on Legendary without picking up an Overshield. 10 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HR Achievement Walk it Off.png Walk it Off Complete the level "Pillar of Autumn" on Legendary without picking up a health kit. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HR Achievement No-Fly Zone.png No-Fly Zone Destroy three Banshees in the level Halo on any difficulty. 10 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HR Achievement How Pedestrian.png How Pedestrian Complete the level "Halo" on any difficulty without entering a vehicle. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
File:HR Achievement All According to Plan.png All According to Plan... Kill all the enemies in the first encounter of the level "Truth and Reconciliation" without being detected. 10 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
HR Achievement Close Quarters Combat.png Close Quarters Combat Complete the level "Truth and Reconciliation" with at least four rounds left in your Sniper Rifle. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH24.png Beachhead Storm the Beach on the level "The Silent Cartographer" without losing any marines on Heroic difficulty or above. 10 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH25.png Grenadier After activating the map in the level "The Silent Cartographer" complete the rest of your mission without firing a shot on Heroic difficulty or above. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH26.png Wraith Hunter Destroy four Wraith tanks in "Assault on the Control Room" with the Scorpion tank, in a single play. 10 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH27.png I'll Be Taking That! Pilot a Banshee on the level "Assault on the Control Room". 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH28.png This One's for Jenkins! Kill 50 Flood Combat Forms on the level "343 Guilty Spark" on Heroic difficulty or higher. 10 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH29.png Breaking Quarantine Escape the Forerunner facility on the level "343 Guilty Spark" in 21 minutes. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH30.png That Just Happened Complete the level "The Library" on Heroic difficulty or higher without dying. 10 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH31.png Speed Reader Complete the level "The Library" on Legendary difficulty in 30 minutes or less. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH32.png Look Out for the Little Guys Complete the level "Two Betrayals" on Heroic difficulty or higher without killing any Grunts. 10 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH33.png Leave It Where It Lay Complete the level "Two Betrayals" on Legendary difficulty without picking up a new weapon. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH34.png Tying Up Loose Ends Kill every Elite on the level "Keyes" on Heroic difficulty or above. 10 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH35.png Popcorn.gif Kill 100 Flood Infection Forms on the level "Keyes" on Heroic difficulty or above. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH36.png This Side Up Complete the Warthog ride on the level "The Maw" without being forcibly ejected from your vehicle. 10 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH37.png Never Tell Me the Odds Complete the Warthog ride on the level "The Maw" on Legendary difficulty with at least a minute remaining on the countdown. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
Terminals
ACH38.png What have we here? Read a terminal. 10 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH39.png Heavy Reading Read half the terminals hidden throughout the campaign. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH40.png Dear Diary... Read all of the terminals hidden throughout the campaign. 50 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
Skulls
ACH41.png Looks like the Oddball Find your first campaign skull. 10 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH42.png Skulls Taken! Locate half of the skulls hidden throughout the campaign. 25 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH43.png Headhunter Locate all the skulls hidden throughout the campaign. 50 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.
ACH44.png Tsantsa Complete any level with three skulls active at Heroic difficulty or higher. 50 Gamerscore icon taken from Xbox.com. Originally a single block colour (with the two circles both being white and the 'G' a transparent cutout), but modified by myself to display nicely on dark *and* light themes, and to be reminiscent of the pre-Xbox One gamerscore icon.

Trivia

Halo: Combat Evolved Anniversary is the only game to date in which all of its achievements can be unlocked offline. All other games require online play and the purchase of an Xbox LIVE gold membership to unlock some of their achievements.

Sources