Call of Duty: Modern Warfare 4 will introduce Kill Block, a dynamic multiplayer map that changes its layout between rounds by swapping large sections of the battlefield.
The map is built from three modular slabs. Two form the ends of the arena, while a third sits in the centre. At the end of each Gunfight round, one section can be lowered beneath the map and replaced with another, creating a different combination for the next round.
Infinity Ward says the full system can support around 900 possible combinations, although approximately 500 are expected to be available when the game launches in October. More slabs and compatible modes may be added through seasonal updates.
Kill Block is similar in overall size to Shoot House, but its changing structure should make each round feel less predictable. Players will need to adapt quickly as sight lines, cover, interior spaces, and environmental conditions shift.
Each slab brings different routes, cover, and combat conditions
The launch selection includes original areas and sections inspired by older Modern Warfare maps. Confirmed slabs include Ambush, Blacksite, Killhouse, ME Town, Snow Block, and Trench.
Ambush includes a damaged road filled with vehicles and buildings that support long range engagements. Killhouse focuses on compact spaces and close combat, while Trench provides open sight lines with limited protection.
Some sections also include simulated weather. Snow, fog, and other conditions can affect visibility and weapon behaviour, adding another layer of variety beyond the physical map layout.
| Kill Block feature | What it changes |
|---|---|
| Three modular slabs | Creates a new arena layout between rounds |
| Around 500 launch combinations | Reduces repetition during repeated matches |
| Classic map sections | Reintroduces familiar areas in a new format |
| Weather simulation | Changes visibility and combat conditions |
| Small map scale | Keeps matches fast and focused |
| Seasonal expansion | Allows new slabs and modes to be added later |
The map is set inside the West Bridge Advanced Military Training Facility. Eight concrete towers surround the arena and contain the motors, electronics, and pulley systems used to move the slabs.
Each section rests on rail mounted wheel assemblies. When a round ends, the active slab disconnects, lowers into an underground storage area, and is replaced by another section. The new slab then rises into position and connects with the rest of the battlefield.
The mechanical explanation is part of the map’s visual design. Rather than changing instantly without context, Kill Block presents its transformation as a working feature of the training facility.
Kill Block is designed for fast Gunfight matches
Early preview sessions used a 10 against 10 version of Gunfight. Each player received a randomly selected loadout and had one life per round.
The compact size placed teams in combat quickly. Players could move freely across all three slabs, but the changing layout meant that routes and useful positions did not remain consistent from one round to the next.
A strong position in one round may disappear entirely after the centre section changes. Snipers may gain new sight lines, while close range players could find additional rooms, walls, or narrow routes.
The system may also reduce the need to rely heavily on repeated versions of Shipment and Shoot House. Call of Duty has returned to those maps several times, and Kill Block offers similar fast action while giving the development team a way to introduce greater variety.
Call of Duty: Modern Warfare 4 will launch on October 23, 2026, for Xbox Series X and Series S, PlayStation 5, Nintendo Switch 2, and PC through the Xbox app, Battle.net, and Steam. Campaign early access begins on October 16 for eligible preorders.
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