Activision has detailed the upcoming testing schedule and content lineup for Call of Duty: Modern Warfare 4. The pre-release testing period is split into two phases, giving players access to a single-player campaign mission alongside traditional multiplayer modes and Warzone content.

Quick Facts

  • Early Access Beta: August 21 to August 25, 2026 (Requires pre-order, Discord Nitro, or CDL Champs drops)
  • Open Beta: August 28 to September 1, 2026 (Free for all players)
  • Platforms: PS5, Xbox Series X|S, Xbox on PC, Steam, Battle.net, and Nintendo Switch 2 (open beta only)
  • Full Game Release: October 23, 2026

Early Access Beta Content

The early access phase kicks off following the Call of Duty NEXT presentation. Participants will have access to a single portion of the narrative alongside a robust selection of multiplayer arenas and modes.

Campaign

  • Entrenched

Multiplayer Maps

  • Rooftops
  • Silkworm
  • Transit 213
  • Cachette
  • Lotus
  • Kill Block

Multiplayer Modes

  • Team Deathmatch
  • Domination
  • Hardpoint
  • Kill Confirmed
  • Inflation
  • Search & Destroy
  • Kill Block 10v10 & 3v3 Gunfight
  • Mobility Course

Open Beta Additions

Beginning August 28, the open beta removes entry restrictions and introduces battle royale elements alongside additional multiplayer map variants and modes.

Warzone

  • Zodiac (New Resurgence map)

Ground War

  • Combat Outpost – Imjin Farmland & Wolves Stadium

Additional Multiplayer Content

The open beta features the same maps and modes as the early access period, plus the Lithium multiplayer map, and two exclusive modes:

  • Hijack
  • Combat Outpost