| Game | Achievement | Points | From | To | |
|---|---|---|---|---|---|
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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. | |||||
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Elder Signs | 1.36 | 05/05/2024 00:00:00 | 05/05/2024 23:59:59 |
| Halo 3: View 2 different sigils on Valhalla. | |||||
|
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Back At It | 0.59 | 05/09/2024 00:00:00 | 05/09/2024 23:59:59 |
| Halo 2: Play a game of Halo 2 Anniversary on the 9th of any month. | |||||
|
|
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. | |||||
|
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A Day To Remember | 0.57 | 05/15/2024 00:00:00 | 05/15/2024 23:59:59 |
| Halo CE: Play Halo: CE on the 15th of any month. | |||||
|
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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. | |||||
|
|
Destination Vacation | 1.31 | 07/07/2024 00:00:00 | 07/07/2024 23:59:59 |
| Halo 2: View one of the seasonal signs on Zanzibar in classic multiplayer. | |||||
|
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Happy Halloween! | 1.00 | 10/31/2024 00:00:00 | 10/31/2024 23:59:59 |
| Play the Halloween version of the game. | |||||
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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. | |||||
|
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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. | |||||
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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. | |||||
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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. | |||||
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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. | |||||
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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. | |||||
|
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Christmas In Cairo | 1.36 | 12/10/2024 00:00:00 | 01/05/2025 23:59:59 |
| Decorate the Christmas tree. | |||||
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Reindeer Hunter | 1.83 | 12/10/2024 00:00:00 | 01/05/2025 23:59:59 |
| Decorate the Christmas tree on each level to unlock Rodolfo player model. | |||||
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Christmas Shopping | 1.46 | 12/25/2024 00:00:00 | 12/25/2024 23:59:59 |
| Buy an item from the Camp Store on Christmas. | |||||
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New Year's Resolution | 1.99 | 01/01/2025 00:00:00 | 01/01/2025 23:59:59 |
| Run Time Spy Extreme on January 1. | |||||
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Endless Day | 1.20 | 01/21/2025 00:00:00 | 01/25/2025 23:59:59 |
| ...in the ruins all across Auriga, and even throughout... | |||||
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Endless Day | 1.86 | 01/21/2025 00:00:00 | 01/25/2025 23:59:59 |
| You have unlocked the Endless archivist; the being that watches the watchers… | |||||
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Shoot for the Moon | 2.26 | 01/29/2025 00:00:00 | 01/29/2025 23:59:59 |
| Achieve a great score or better for your hardware during Lunar New Year. | |||||