The next test of Activision’s long-running military shooter series is arriving soon, and players will not have to wait until launch day to see whether this one feels like a course correction. Call of Duty: Modern Warfare 4 open beta dates are now set for August, giving players on Nintendo Switch 2, PlayStation 5, Windows PC, and Xbox Series X a first public look at the game’s multiplayer.

Yes, this is Call of Duty: Modern Warfare 4, the new 2026 entry, not Call of Duty 4: Modern Warfare from 2007. The naming department continues to enjoy keeping everyone alert.

When can players join the beta?

The beta will run across two testing windows, with early access reserved for players who pre-order the game, except on Nintendo Switch 2.

  • Early access beta: Aug. 21 to Aug. 25
  • Open beta: Aug. 28 to Sept. 1
  • Platforms: Nintendo Switch 2, PlayStation 5, Windows PC, and Xbox Series X

The second beta weekend will be free for everyone, though Activision notes that a “multiplayer subscription may be required.” PlayStation Network and Xbox usually allow free multiplayer titles to be played without a paid subscription, so that wording may be aimed at Nintendo Switch 2, since Nintendo has previously required Switch Online for some free beta access.

What will be included in the multiplayer test?

The beta is being pitched as a substantial first taste, not just a small stress test with one map and a prayer. According to the official Call of Duty blog, players can expect a “wide selection of brand-new Operators,” the series’ playable character roster, along with 19 unlockable weapons.

The test will also include several modes and activities, including:

  • 3v3 skirmishes
  • Tactical battles featuring tanks and other combat elements
  • Search & Destroy
  • A Training Mobility Course
  • Kill Block, the major new multiplayer feature

For returning players, Search & Destroy is the familiar competitive mode here. For everyone else, it is the one where patience and communication tend to matter more than sprinting into a doorway and discovering consequences.

How does Kill Block change matches?

The biggest new addition in the beta is Kill Block, a modular multiplayer map system designed to change from match to match.

“Kill Block is a modular Multiplayer battleground that reconfigures every match, challenging players to rethink routes, sightlines, and combat spaces on the fly,” the official Call of Duty blog says.

In practical terms, the map is built from pre-made parts that can be rearranged into more than 500 configurations. That means players should not be able to memorize one set of lanes, corners, and sightlines and then live there forever. At least, that seems to be the theory. Call of Duty players are famously efficient at finding the least dignified angle on any map within hours.

What is the campaign about?

Call of Duty: Modern Warfare 4 was announced earlier this year and is scheduled for release on Oct. 23. Players who digitally pre-order the game will be able to access the single-player campaign one week early.

The campaign is set in Korea and follows the eruption of a new conflict between North and South Korea. Alongside the campaign and traditional player-versus-player multiplayer, the game will also bring back DMZ, the extraction shooter mode that first appeared in Call of Duty: Modern Warfare 2 in 2022.

That mix gives Activision a familiar but broad package: story campaign, competitive multiplayer, and extraction-style survival. The beta, however, is focused on the multiplayer side, which is where the series often lives or dies for its most dedicated audience.

Why this beta matters for Modern Warfare fans

The Modern Warfare branch of Call of Duty has had a rough few years with parts of its own audience. Call of Duty: Modern Warfare 3 from 2023 became one of the worst-reviewed games in the franchise’s history, largely because of its thin single-player campaign. Call of Duty: Modern Warfare 2 from 2022 also frustrated many players with slower movement than they wanted.

On top of that, the series has faced continuing complaints about increasingly cartoonish multiplayer skins, often described by players as “clowny.” Infinity Ward has said it plans to address these issues in the new game.

The August beta will not answer every question. It will not show whether the campaign can recover goodwill after 2023’s disappointment, and it will not fully prove whether the cosmetic direction has changed enough for skeptical players. But it will give people a real feel for movement, weapons, modes, and Kill Block before the Oct. 23 launch. For a series trying to steady its reputation, that first hands-on impression matters.