The Operation Anvil update for Halo Infinite masterfully introduces the new Big Team Battle: Sentry Defense mode and the coveted ASSAILER armor set, delivering thrilling, chaotic warfare. This substantial content drop keeps the battlefield dynamic and rewarding for all Spartans, ensuring the saga's evolution remains compelling in 2026.

Master Chief's saga continues to evolve in 2026, and the latest injection of life into Zeta Halo comes in the form of the Operation Anvil update for Halo Infinite. Live since July 2nd, this substantial drop offers Spartans fresh objectives, coveted gear, and a thrilling new twist on the chaotic large-scale warfare the series is known for. Developer 343 Industries continues to refine its approach to post-launch support, delivering focused content that keeps the battlefield feeling dynamic and rewarding for both new recruits and seasoned veterans alike.

🔥 The Anvil Falls: Operation Pass Breakdown

At the heart of this update is a brand-new, 20-tier Operation Pass, available from July 2nd until July 30th. This isn't just another grind; it's a treasure trove of Sangheili-inspired glory. The crown jewel is the formidable ASSAILER armor set, a piece of gear that makes your Spartan look like they've just walked out of a Covenant war council. Earning your stripes is straightforward:

  • Progress via Match XP: Play your favorite modes and watch the XP roll in.

  • Complete Limited-Time Challenges: Tackle specific in-game feats for big boosts.

Earned Spartan Points can be spent in The Exchange, but the real strategic choice comes with the premium offerings for the pass itself. Think of the base Operation Pass as a delicate sand sculpture on the beach—it's beautiful but temporary. The premium options are the kiln that turns it into permanent porcelain.

Premium Option Cost (Credits) Key Benefits
Operation Pass Durable 500 Makes the pass permanent, adds bonus XP, an extra Challenge slot, and an exclusive custom item.
Instant Unlock (All 20 Tiers) 2000 Immediately claims all 20 tiers of the Operation Pass.

Both premium purchases also grant the ferocious Smash and Grab weapon model for the M41 SPNKr rocket launcher and the sleek Rent Seeker weapon coating. It's a complete arsenal upgrade package.

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🤖 Sentry Defense: A New BTB Beast

The other colossal addition is Big Team Battle: Sentry Defense. This mode introduces a PvPvE (Player vs. Player vs. Environment) element that changes the BTB formula like a master locksmith reconfiguring a complex mechanism. The core objective is simple yet intense: protect your team's AI-controlled Sentry (the formidable Adjutant Resolution, a familiar foe from the campaign) while relentlessly assaulting the enemy's.

  • Each team starts with a 2,000-point health pool linked to their Sentry.

  • Damage dealt to the enemy Sentry drains their points.

  • The first team to see their points hit zero loses.

It’s a frantic tug-of-war where strategy is as crucial as sharpshooting. The mode is available on a curated list of classic and new BTB battlegrounds:

  • Fragmentation

  • Highpower

  • Deadlock

  • Oasis

  • Scarr

  • Command (a brand-new, community-created map!)

The inclusion of Adjutant Resolution is a masterstroke, transforming the multiplayer arena into a living extension of the campaign's narrative. Fighting alongside or against this powerful AI is like having a mythological titan crash your backyard skirmish—it elevates everything to an epic scale.

🎨 More Than Just Warfare

343 Industries hasn't forgotten the community and important celebrations. The July update is sprinkled with free, meaningful cosmetics:

  • Disability Pride Month Items: Log in to receive a commemorative armor coating, visor, and emblem.

  • Juneteenth Celebration Items: Additional free customization options to honor the holiday.

These items are automatically unlocked upon login, a small but significant gesture that adds depth to the Spartan identity beyond the battlefield.

🧭 The Evolving Future of Infinite

Operation Anvil is a clear indicator of Halo Infinite's development philosophy in 2026. The shift from massive seasonal drops to more frequent, focused Operations like this allows for a more agile and responsive live service. It's the gaming equivalent of a chef preparing a series of exquisite small plates rather than a single, overwhelming banquet—each update is distinct, digestible, and leaves you eager for the next course.

With its compelling new Battle Pass, the strategic depth of Sentry Defense, and thoughtful community nods, Operation Anvil proves that the forge of 343 Industries is still burning hot. The fight for Zeta Halo remains as engaging and visually stunning as ever, inviting Spartans to suit up, lock in, and leave their mark on this ever-evolving ringworld.