Halo Campaign Evolved Update Patch Notes (29th July 2026)

Halo Campaign Evolved's first post-launch patch lands as a 20.2GB download focused on stability rather than balance or content. The update targets a specific hardware problem that has plagued AMD users since launch: crashes tied to driver versions 26.6.2 and 26.6.4 when FSR upscaling is enabled during The Maw's introduction cinematic. This is not a minor edge case. AMD's driver ecosystem has been fragile enough that the patch now adds a blanket warning system for both AMD and NVIDIA cards, alerting players at launch if their driver version carries known issues. This shifts responsibility partly to players but also signals that driver compatibility remains a live problem the studio cannot fully solve on its own.

Mission-specific fixes address behaviour rather than crashes. Jackals in The Truth and Reconciliation's hanger hallway were stationary; they now patrol. Spec Ops Elites near Rally Point Delta on Assault on the Control Room now engage properly instead of standing idle. The Hunter pair on The Silent Cartographer now consistently triggers combat after the player approaches the cartographer's entrance. These are not cosmetic changes. Enemy passivity in a campaign shooter directly undermines difficulty and pacing, especially on higher difficulties where players expect aggressive opposition. Multiple encounters shipping in this state suggests either incomplete testing across difficulty modes or late-stage design changes that did not propagate fully. Players on Legendary difficulty will feel these fixes most acutely; Normal and Heroic players may not have noticed the problem at all.

A charged Plasma Pistol balance adjustment removes an outlier: full-health-and-shields players can no longer be killed by a single charged shot on any difficulty. This closes a specific exploit or oversight rather than rebalancing the weapon broadly. The patch also addresses a performance regression for players with large friends lists, suggesting that social feature integration introduced hitching during gameplay. This fix matters primarily to streamers and active community members who maintain extensive friend rosters.

The known issues list reveals what remains broken and will persist through this patch. Cinematics still stutter if your display refresh rate is not a multiple of 30 Hz, with only a workaround available. Audio and video desync during cinematic pauses is unresolved. On Two Betrayals, destroying the banshee after the first generator still locks progression. XeSS Frame Generation causes visual freezing when frame rate limits are set. NVIDIA RTX 50 series cards crash on specific missions with certain driver versions, though a workaround exists. These are not minor cosmetic issues; progression locks and hardware crashes are hard blockers for affected players. The studio is asking players to report unresolved issues directly to Halo Support rather than promising fixes in a roadmap, which is transparent but leaves a backlog of known problems in the hands of support tickets rather than committed development cycles.