- Infinity 5k charity fun run for Earth-based personnel. The run begins at the stem of the ship and ends at the stern.
- UNSC Infinity returns for its second tour on Requiem to establish research facilities on the world. Various Fireteams including Majestic and Crimson are deployed to Requiem.
- UNSC Infinity's Poker Night.
- Atrium Park Valentine's Dance aboard UNSC Infinity.
- Cage Wrestling Fights are held aboard UNSC Infinity.
- Infinity Day. Ceremony held aboard the ship.
- UNSC Infinity holds a Chilli Cook-Off in the ship's Forward Mess Hall.
- The Second Battle of Requiem ends.
- UNSC Infinity returns to the Sol system. Commander Palmer and Captain Lasky are debriefed at HIGHCOM Facility Bravo-6.
- Admiral Hood arrives on Infinity to personally brief Captain Lasky on his next deployment.
- A Sangheili fleet arrives in the Sol system and organize a battlegroup with the Infinity as its flagship.
- A joint UNSC-Sangheili diplomatic dispatch arrives at Ealen IV and begins negotiations with the Jiralhanae Chieftain Lydus.
- A mercenary strike team attacks the diplomats in an attempt to assassinate Lydus, Thel 'Vadam and Admiral Hood, starting the Battle of Ealen IV.
- UNSC Infinity encounters the abandoned and damaged Pilgrims' Pride in the Artesia-702 System. Vehicles and equipment aboard are identified by after-action teams as belonging to UNSC Spirit of Fire.
- New Phoenix reopens to the public from quarantine.
- UEG president Ruth Charet gives a speech about the incident that occurred at New Phoenix.
- Spartans Thorne and Ray are deployed to the surface of Ven III to seize the bio-weapon and eliminate the Sangheili mercenary carrying it.
- The Battle of Ven III occurs.
- Spartans Thorne and Ray engage Kig-Yar forces. Thorne is incapacitated and kidnapped by the Sangheili mercenary.
- Spartan Ray discovers the Kig-Yar pirate kingdom and radios for support from Infinity.
- The Kig-Yar pirate kingdom is destroyed by concentrated air attacks from Infinity.
- The Sangheili mercenary is retrieved by an ONI heavy prowler.
- The Battle of Oban occurs.
- UNSC Infinity is stranded in an unknown system after its Slipspace drive is sabotaged.
- 2100 Hours: A match between Team Tannhauser and Team Orion of the Galactic Grifball League was to take place. Possibly disrupted due to The Reclamation.
- The film 117: Heroes Never Die was supposed to premiere. Possibly disrupted due to The Reclamation
- Benjamin Giraud is employed by Michael Sullivan to create an in-depth profile about the John-117.
- Giraud is later imprisoned and taken to Midnight Facility
- Captain Lasky, Spartan Ray and Petra Janecek arrive on Karava.
- The Skirmish of Oth Lodon takes place.
- Second Battle of Requiem
- Battle of Ealen IV
- Oth Lodin Skirmish
- Battle of Ven III
- Battle of Oban
- Battle of Atkis IV
- Operation: ATHENA
- Battle of Kamchatka
- Raid on UNSC Argent Moon
- Battle of Meridian
- Battle of Sunaion
- Battle of Genesis
- The Reclamation
Losses and Deaths
- ↑ Halo Waypoint: Universe - Argent Moon
- ↑ YouTube: Halo 5: Guardians Mission 3 - Glassed
- ↑ Youtube: Halo 5 A Hero Falls TV Commercial (HD)
- ↑ Hunt the Truth - Sullivan Letter to Admiral Osman
- ↑ YouTube: Halo 5: Guardians – Swords of Sanghelios Gameplay Capture
- ↑ Halo 5: Guardians - Forge Object: Billboard, Griffball, T vs O
- ↑ Halo 5: Guardians - Forge Object: Billboard, Movie, Chief