Before Modern Warfare 4 reached stores on October 23, 2026, Infinity Ward explained in a long post on the official Call of Duty blog how multiplayer would work on the inside: how you move, how you shoot, the new equipment, the modes and the maps. The post went up on August 21, 2026, the same day the Open Beta early access began. This article, written by the SequeLariCOD team in our own words, organizes that post for anyone who wants to understand what changed in how the game feels. One important note: the post itself warns that everything in it was still in development. So whenever a number changed later, in the launch post, we tell you which information is the newest.
Who made it and for which devices
According to the post, development was led by Infinity Ward. The PC version was made in partnership with Beenox, and the Nintendo Switch 2 version with Digital Legends. The game came out on Xbox Series X|S, PlayStation 5, PC (Battle.net, Xbox on PC and Steam) and Nintendo Switch 2. The post points out that this marks Call of Duty's return to a Nintendo device after more than 13 years. Beta early access started on August 21 for players with a Beta code or a pre-purchase.
Movement: climbing is no longer a locked animation
The biggest change described in the post is movement. In older games, climbing over an obstacle was a fixed animation: the character did the whole move and the player just waited. In Modern Warfare 4, the idea is that the player stays in control during the climb. The post lists several new mechanics, which we sum up like this:
- Mantle Slide: after going over a low obstacle, like a car hood or a planter, you can go straight into a slide.
- Mantle Momentum: forward speed is not lost when the character climbs an obstacle.
- Mantle Steering: during the climb you can turn, aim or cancel the move halfway.
- Supine Slide: pressing crouch twice while sprinting triggers a longer, lower slide that ends with the character lying on their back.
- Pipe Climb and Fast Pipe Slide: pipes attached to building walls can be climbed, and crouching while sliding down a pipe makes you descend faster.
- Hang Shimmy and Hang Lean: hanging from a ledge, the character moves sideways and, while aiming, can lean and turn around.
- Climbing Jump: while hanging, on a ladder or on a pipe, you can jump in any direction.
The post sums all this up as fluidity: sprinting, sliding, climbing and going prone can be chained without pauses, and the way you land after a sprint changes with height and speed. According to the source, this system applies to the campaign, multiplayer, DMZ and Warzone. To learn it, the game has a movement training course from launch.
Shooting: no random spread when firing from the hip
On the shooting side, the change that stands out most is the end of random spread, the effect that made bullets scatter when the player fired without aiming down sights. Now, according to the post, the bullet goes where the weapon is pointing. That does not mean every shot hits: weapon sway, recoil, movement and handling still affect accuracy. The post also says that weapon movement changes the bullets' path and that the laser sight shows that path, including in replays.
Other changes are more visual. The weapon and the scene now share the same field of view. Muzzle smoke is hidden right at the aiming point so it does not get in the way. When aiming, a depth effect highlights the weapon and keeps the aiming point sharp. On PC there is also an enhanced field of view that, according to the post, does not make targets look smaller. The weapon also sways when walking slowly, adjusts near walls and corners, and the tactical sprint loses pace as stamina runs out.
Equipment and streaks the post showed
The post presents some new or returning pieces. The Trip Wire is a mine that forms a line on the floor, on a wall or vertically, and mines from nearby teammates connect. The Smoke Wall is a drone that leaves a trail of smoke, which explosions can scatter. The Razor Wire is a wire barrier that holds back anyone who runs or slides over it and can be cleared with attacks. The riot shield returns as a temporary item, with front protection and cover you can place on the ground. Among the streaks, the post shows the Bomb Glider, a glider guided by the player, with a new control scheme for mouse and keyboard.
Create-a-Class in numbers (from the Beta to launch)
The post gives the numbers planned for launch: 33 weapons (24 primaries, 8 secondaries and 1 melee), 28 Apex attachments and more than 500 standard attachments, 9 tacticals, 11 lethals, 17 streaks and 18 perks in the pick-three system, with Ninja and Quick Fix returning. For Field Upgrades, the August post said 11; the October launch post already says 12, and that is the newest number. The Gunny helper builds classes with the attachments you have already unlocked, each attachment is unlocked only once and works on other weapons, and Apex attachments are the final reward of each weapon, without taking an attachment slot. The details of each perk are in our Create-a-Class article.
Some examples of Apex attachments mentioned in the post: Outlaw for the Mojave .357 revolver, for faster shooting; 9&12 for the Sang 9mm pistol, with an attached shotgun; Hurricane for the M4 rifle, which changes the caliber and uses a different magazine; ARC for the Kastov 762, which disrupts enemy streaks and equipment; and Shroud for the X-58 NYX, which makes firing less visible.
Modes: the classics and the new ones
In respawn modes, the post confirms Team Deathmatch, Domination, Hardpoint, Kill Confirmed and Free-For-All, plus three new ones: Counter Attack, Inflation and Hijack. In Inflation, every elimination earns money and whoever goes down leaves part of it behind; the richest team wins. In Hijack, 6 versus 6, teams fight over a data device that must be carried to the enemy station. Round-based modes include Search and Destroy, Gunfight and Gunfight 10 versus 10, plus Collateral (5 versus 5, buying weapons each round and only one life) and Frontline (6 versus 6, eliminations outside your own base are worth more). In Ground War, the new mode is Combat Outpost, where setting up outposts generates resources. Party modes include Gun Game and Drop Zone. The post does not explain Counter Attack, so neither do we.
Kill Block: the map that changes every round
Kill Block is set in a training facility and is built from blocks: the map has three sections that swap positions between rounds. According to the post, there are more than 500 combinations, and the weather also varies between clear skies, rain and snow. The blocks are reminiscent of well-known maps from the series, such as Crash, Highrise and Shoot House. At the time of the post, Gunfight already worked on it, and Search and Destroy and Domination were being tested.
Launch and Beta maps
The post mentions 12 core 6 versus 6 maps at launch: Cachette, Coal, Lithium, Lotus, Mumbai, Munition, Nautical, Reactor U92, Rooftops, Sentry, Silkworm and Transit 213. Six of them were in the Beta: Cachette, Lithium, Lotus, Rooftops, Silkworm and Transit 213. For Combat Outpost, the Beta had two maps built for the mode, Imjin Farmland and Wolves Stadium, both in Hajin. At the end, the post previews Warzone: Zodiac, a new Resurgence map made by Beenox, with a train, and Hajin, which moves from DMZ to battle royale, both in Season 1.
What the post does not say
The post gives no damage, range or speed numbers for the weapons, and we did not make any up. It also does not explain the Counter Attack mode, does not say which modes stayed on Kill Block after testing, and does not talk about the minimap or the UAV. For what came after launch, read our articles on the official patch notes, which show, for example, the dive that was reduced and later restored.
A reminder for anyone starting out: good movement is learned by practicing, in the game's own training course. Programs that promise automatic aim or a hidden advantage are cheating, can get your account banned and often carry viruses. Play fair and, if in doubt, see our Play safe page.