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Call of Duty: Modern Warfare 4 Secretly Brings Back Classic Maps in Kill Block

Call of Duty: Modern Warfare 4 Secretly Brings Back Classic Maps in Kill Block

A still from 'Call of Duty' (Credit: Activision / Microsoft)
By July 16, 2026

Infinity Ward has dropped a huge detail about Call of Duty: Modern Warfare 4‘s newest multiplayer mode, and it’s exactly the kind of thing longtime fans have been begging for.

Kill Block was already shaping up to be one of the most talked-about additions to this year’s game. Officially known as the West Bridge Advanced Military Training Facility, the mode builds every match out of modular sections called Slabs, meaning no two games are supposed to look quite the same.

Kill Block Hides Classic Maps Inside Its Randomized Layouts

Infinity Ward confirmed that while most Slabs are entirely new environments, several are secretly built from beloved maps out of Call of Duty history. Crash and Killhouse from the original Call of Duty 4: Modern Warfare, Storage Town from Warzone‘s Verdansk, and Shoot House from 2019’s Modern Warfare have all been recreated as playable sections inside the mode.

The twist is that these nostalgic chunks never appear on their own. Every match randomly pairs two End Slabs with a Central Slab to form what the developers call a Combo, so a classic Crash layout might suddenly border a snowy new courtyard nobody has ever set foot in. Infinity Ward says this recontextualizes familiar terrain, letting players get those classic moments while still being forced to adapt to something new around every corner.

Each match uses two End Slabs bookending a Central Slab, with teams spawning on opposite ends and fighting toward the middle. The overall footprint lands right around the size of Shoot House, and Infinity Ward says there are more than 500 possible configurations available at launch, pulled from a pool the team claims could support up to 900 combos down the line. Weather even factors in, with some Slabs simulating rain or snow that builds up on weapons and messes with visibility.

Kill Block launches with 3v3 and a brand-new 10v10 Gunfight mode, with the developers hinting at more core Multiplayer support coming later in the game’s life cycle. Fans attending Fanatics Fest NYC at the Javits Center this weekend are getting the first public hands-on time with the mode before the wider community gets a chance.

Call of Duty: Modern Warfare 4 launches October 23 on PlayStation 5, Xbox Series X/S, PC, and Nintendo Switch 2.

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