| Game | Achievement | Points | From | To | |
|---|---|---|---|---|---|
|
|
Third Time's A Charm | 0.47 | 04/25/2024 00:00:00 | 04/25/2024 23:59:59 |
| Halo 3: Play a game of Halo 3 on the 25th of any month. | |||||
|
|
Elder Signs | 1.36 | 05/05/2024 00:00:00 | 05/05/2024 23:59:59 |
| Halo 3: View 2 different sigils on Valhalla. | |||||
|
|
Remember Reach | 0.56 | 05/14/2024 00:00:00 | 05/14/2024 23:59:59 |
| Halo: Reach: Play a game of Halo: Reach on the 14th of any month. | |||||
|
|
Do You Remember When We Met | 0.53 | 05/22/2024 00:00:00 | 05/22/2024 23:59:59 |
| H3: ODST: Play a game of Halo 3: ODST on the 22nd of any month. | |||||
|
|
Storyteller | 1.40 | 07/04/2024 00:00:00 | 07/04/2024 23:59:59 |
| Have 12 murderous dates with Calendar Man | |||||
|
|
Cheerful Child | 1.02 | 10/31/2024 00:00:00 | 11/04/2024 23:59:59 |
| In the Safe House Nightmare job find the correct baby mask on the Normal difficulty. Unlocks the "Happy Baby" mask. | |||||
|
|
Gilliam's Sweet Little Baby | 1.04 | 10/31/2024 00:00:00 | 11/04/2024 23:59:59 |
| In the Safe House Nightmare job find the correct baby mask on the Hard difficulty. Unlocks the "Brazil Baby" mask. | |||||
|
|
Temper Tantrum | 1.06 | 10/31/2024 00:00:00 | 11/04/2024 23:59:59 |
| In the Safe House Nightmare job find the correct baby mask on the Very Hard difficulty. Unlocks the "Angry Baby" mask. | |||||
|
|
Water Works | 1.08 | 10/31/2024 00:00:00 | 11/04/2024 23:59:59 |
| In the Safe House Nightmare job find the correct baby mask on the OVERKILL difficulty. Unlocks the "Cry Baby" mask. | |||||
|
|
Sixth Nightmare | 1.08 | 10/31/2024 00:00:00 | 11/04/2024 23:59:59 |
| Complete the Safe House Nightmare job on the Death Wish difficulty or above. | |||||
|
|
Fifth Nightmare | 1.21 | 10/31/2024 00:00:00 | 11/04/2024 23:59:59 |
| Complete the Safe House Nightmare job on the Mayhem difficulty or above. | |||||
|
|
A Horrible Seventh Nightmare | 1.31 | 10/31/2024 00:00:00 | 11/04/2024 23:59:59 |
| Complete the Safe House Nightmare job on the Death Sentence difficulty with the One Down mechanic activated. | |||||