| Game |
Achievement |
TA |
GS |
Ratio |
Won |
Sol |
 |
 |
 |
A Monument to All Your SinsComplete each Campaign Mission on Legendary - alone. |
262 |
(150) |
1.75 |
22 Jun 11 | 
|
|
 |
 |
Suicide MissionaryComplete all campaign acts on Insane Difficulty |
262 |
(150) |
1.75 |
17 Sep 11 |
|
|
 |
 |
il PrincipeReceive 100% synch in ACB and full synch in all missions of the Da Vinci Disappearance. |
223 |
(100) |
2.23 |
19 Apr 11 |
|
|
|
 |
Gods Must Be StrongComplete the Campaign on Legendary difficulty. |
191 |
(125) |
1.53 |
22 Jun 11 |
|
|
|
 |
Seriously 2.0Kill 100,000 enemies (any mode) |
184 |
(50) |
3.67 |
Offline |
|
|
|
 |
Bounty HunterAnniversary: Capture 10 skulls at once in a matchmade Headhunter game. |
182 |
(75) |
2.42 |
19 Nov 11 |
|
|
 |
 |
I've Done it All!Earn at least one of each of the original 132 combat ribbons. |
176 |
(75) |
2.35 |
20 Jan 12 |
|
|
 |
 |
Campaign Complete: LegendaryFinish the Campaign on Legendary (unlocks achievements for Normal and Heroic, if not earned). |
176 |
(125) |
1.41 |
14 Jun 11 |
|
|
 |
 |
Professor PortalAfter completing co-op, complete Calibration Course online with a friend who hasn’t played before |
167 |
(75) |
2.23 |
25 Jul 11 |
|
|
|
 |
Campaign Complete: HeroicFinish the Campaign on Heroic (unlocks achievement for Normal, if not earned). |
165 |
(125) |
1.32 |
14 Jun 11 |
|
|
|
 |
Veteran GearReach level 100 and win a match on each of the 4 Snowblind Map Pack maps (not Custom) |
162 |
(75) |
2.16 |
18 Sep 11 |
|
|
|
 |
Kill Locust (Like a Boss)Defeat a Boss Wave as 5 Onyx Guards (Hardcore difficulty). |
160 |
(100) |
1.60 |
02 Nov 11 |
|
|
|
 |
Annex: Now With Execution RulesWin an Annex match on each Flashback and Combustible Map Pack map (not Custom) |
155 |
(75) |
2.07 |
27 Aug 11 |
|
1 |
 |
 |
Campaign Complete: LegendaryComplete the Campaign on Legendary to unlock a new Firefight character. |
149 |
(100) |
1.49 |
19 Jun 11 |
|
|
|
 |
That's Just CrazyComplete all campaign Acts on Insane Difficulty (Standard or Arcade). |
147 |
(75) |
1.95 |
01 Oct 11 |
|
|
|
 |
You Saved ScienceComplete all test chambers in all courses of co-op |
145 |
(100) |
1.45 |
22 Jul 11 |
|
|
|
 |
Campaign Complete: NormalFinish the Campaign on Normal. |
143 |
(125) |
1.14 |
14 Jun 11 |
|
|
|
 |
Zeta Team, Go!Complete waves 1-10 of Horde with 5 players as Zeta (Barrick, Tai, Minh, Valera and Jace). |
140 |
(75) |
1.86 |
14 Dec 11 |
|
|
|
 |
Candy from a BabyDefiant: Capture two flags from an enemy capture zone in a matchmade Stockpile game. |
139 |
(75) |
1.85 |
12 Jul 11 |
|
|
|
 |
SocialiteEarn the Onyx "War Supporter" medal. |
138 |
(70) |
1.97 |
12 Nov 11 |
|
|
|
 |
Campaign Complete: HeroicComplete the Campaign on Heroic difficulty. |
137 |
(100) |
1.37 |
19 Jun 11 |
|
|
|
 |
AudiophileFind all Audio Logs, alone or with another ODST. |
131 |
(75) |
1.75 |
19 Jun 11 |
|
|
|
 |
Again!Achieve level 100 a second time and choose to re-up for another tour. |
131 |
(50) |
2.61 |
12 Mar 12 |
|
|
|
 |
Download CompleteReach Level 50 (Multiplayer Only). |
131 |
(40) |
3.27 |
20 Jul 11 |
|
|
 |
 |
The Eagle and The Apple - 1191Complete Assassin's Creed. |
126 |
(100) |
1.26 |
08 Jul 11 |
|
|
|
 |
Smash TVBreak 11 test chamber monitors |
126 |
(75) |
1.68 |
22 Jul 11 |
|
|
|
 |
Campaign Complete: NormalComplete the Campaign on Normal difficulty. |
118 |
(100) |
1.18 |
19 Jun 11 |
|
|
|
 |
Friends List With BenefitsWhile playing co-op, hug 3 different people on your friends list |
115 |
(50) |
2.31 |
22 Jul 11 |
|
|
 |
 |
An Old Friend ReturnsEscape the hideout. |
113 |
(100) |
1.13 |
13 Jul 11 |
|
|
|
 |
Dive BomberAnniversary: Perform a Beat Down on an enemy player while using the Jetpack during a matchmade game. |
110 |
(50) |
2.19 |
17 Nov 11 |
|
|
|
 |
We Few, We Happy Few...Complete all Campaign Acts in 4 player Co-op (any difficulty, Standard or Arcade). |
108 |
(50) |
2.15 |
01 Oct 11 |
|
3 |
|
 |
Artist of WarComplete all campaign acts on Hardcore Difficulty |
107 |
(75) |
1.43 |
29 Mar 11 |
|
|
|
 |
What Does This Button Do?Get 500 Silverback rocket kills in Horde (any map, any difficulty). |
106 |
(50) |
2.12 |
11 Nov 11 |
|
1 |
|
 |
Force MultiplierKill a Lambent Berserker with a team comprised of 5 Forces of Nature characters in Horde. |
106 |
(50) |
2.11 |
30 Mar 12 |
|
|
|
 |
Heat in the PipeScore 1,000,000 points in Firefight on any map. |
102 |
(75) |
1.36 |
22 Jun 11 |
|
|
|
 |
Time to Re-up!Achieve level 100 and choose to re-up for another tour of duty. |
99 |
(50) |
1.98 |
10 Mar 12 |
|
|
|
 |
Blood on the SandReach level 50 in multiplayer and complete waves 1 - 50 on the Nowhere map in Horde |
99 |
(50) |
1.98 |
28 Aug 11 |
|
|
|
 |
Personal VendettaKill every Templar. |
96 |
(40) |
2.41 |
09 Jul 11 |
|
|
 |
 |
Living LegendComplete every level of the game on Legendary difficulty. |
94 |
(50) |
1.88 |
27 Nov 11 |
|
|
|
 |
Look Both WaysOn a Legendary map, get a Splatter Spree during any ranked or social match. |
92 |
(50) |
1.85 |
15 Jun 11 |
|
|
|
 |
It's Hammer Time!Achieve Level 4 in Horde Command Center fortifications. |
91 |
(50) |
1.82 |
18 Nov 11 |
|
|
|
 |
HeadhunterLocate all the skulls hidden throughout the campaign. |
89 |
(50) |
1.78 |
27 Nov 11 |
|
|
|
 |
Level 50Reach level 50. |
89 |
(50) |
1.78 |
23 Oct 11 |
|
|
 |
 |
Is It a SpiderKill 100 enemies in ranked matches with grenade tag |
87 |
(30) |
2.89 |
30 Aug 11 |
|
|
|
 |
Dear Diary...Read all of the terminals hidden throughout the campaign. |
86 |
(50) |
1.71 |
27 Nov 11 |
|
|
|
 |
You Ate All the ChipsNoble 1: Collect all of the flags in a matchmade Stockpile game. |
84 |
(42) |
1.99 |
09 Jul 11 |
|
|
|
 |
Totally Worth ItNoble 1: Earn a Double Kill from the Grave in multiplayer Matchmaking. |
83 |
(50) |
1.66 |
11 Jul 11 |
|
|
|
 |
Battle-Hardened GearReach level 50 and play a match on each of the 4 Snowblind Map Pack maps (not Custom) |
81 |
(50) |
1.62 |
28 Aug 11 |
|
|
|
 |
Cross-Mappin'Noble 1: Kill a player at long range with the DMR in a matchmade Slayer game. |
80 |
(50) |
1.61 |
09 Jul 11 |
|
|
|
 |
Around the WorldWin a ranked match on every versus map |
79 |
(30) |
2.64 |
30 Aug 11 |
|
|