The Modern Warfare 4 beta got its Day 2 update after Weekend One opened, and Infinity Ward wasted no time responding to what players were already complaining about. The patch covers footstep audio, weapon balance, map voting, visibility, bug fixes and a couple of new additions to try out.

Two pieces of new content headline the update: the Cachette multiplayer map and the Inflation game mode, both of which give beta testers more to do while Infinity Ward keeps an eye on feedback for the rest of the test. The studio has already said this won't be the last round of changes before the beta wraps up.

That last part matters more than it might seem. Beta feedback windows are short, and studios don't always move on complaints until much closer to launch. Infinity Ward turning around a patch this substantial within a day of the beta opening suggests the team is actively watching how these first matches play out rather than waiting to compile a bigger list of fixes later on.

Here's a full breakdown of everything in the latest patch.

What Changed in the First Beta Update

The update leans heavily into gameplay balance and audio, which tracks with what generated the most discussion on day one. The full list of changes includes:

  • Reduced enemy footstep volume and audio range
  • Reduced gear sound volume and range
  • Nerfs to the ISO Nightshade
  • Nerfs to the Oris 8.6
  • Adjustments to Frangible Rounds
  • A new Cachette 6v6 map
  • A new Inflation game mode
  • Map voting
  • Better visibility on Transit 213
  • Daily Challenge rerolls
  • Several bug fixes

Footsteps and Gear Sounds Are Quieter

The most immediately noticeable change is to movement audio. Infinity Ward has turned down both the volume of enemy footsteps and gear, and how far away that sound can be heard.

Players spent a lot of the opening day pointing out how easily footstep audio was giving away positions across the map, and this patch is a direct answer to that. Infinity Ward isn't trying to remove audio as an information source entirely though. The idea is that footsteps should still warn a player that someone is closing in, without letting them pinpoint exactly where that person is standing from far away.

Gunfights should feel a little less dependent on standing still and listening for footsteps after this change. Infinity Ward has also said it's still watching feedback around movement audio, so these numbers could shift again before the beta ends.

Audio has always been one of the trickier things to balance in a Call of Duty beta. Turn it up too much and players camp corners waiting to hear someone coming. Turn it down too far and movement stops mattering at all, which undercuts everything the game is doing with its new mantling and sliding systems. This first pass looks like Infinity Ward trying to find that middle point early, rather than shipping a fixed value and hoping it holds through launch.

ISO Nightshade Takes a Hit

The ISO Nightshade picked up several balance changes in this patch. Damage falloff at range has been increased, and its headshot multiplier has been reduced.

Both changes are aimed squarely at bringing down how deadly the weapon is outside of its intended range. If the ISO Nightshade felt like it was punching above its weight during the opening day, this is the fix for that.

Anyone who spent Weekend One's first day running the ISO Nightshade at range should expect it to feel a little less forgiving out past its intended distance after this patch.

Oris 8.6 Loses Some of Its Range Advantage

The Oris 8.6 marksman rifle also got adjusted. Its damage range has been shortened, meaning players will hit falloff sooner than before, and its headshot multiplier has been lowered as well.

The Razor attachment for the Oris 8.6 got tuned too, with a longer delay added between throws. Together, these changes should pull the rifle back from dominating longer engagements while keeping it usable for anyone who wants a slower, more deliberate marksman rifle in their loadout.

Marksman rifles walk a fine line in Call of Duty. Push their range and headshot damage too high and they start behaving like sniper rifles with faster fire rates, which crowds out other weapon classes. Pulling the Oris 8.6's damage range in slightly should keep it competitive without letting it dictate every long sightline in the beta's map pool.

Frangible Rounds Are Less Oppressive

Frangible Rounds got trimmed down as well. The slow effect from the attachment has been reduced in two places: duration is down 26.8 percent, and magnitude is down 21.4 percent.

That should take some of the sting out of getting caught by the attachment repeatedly during a firefight. It's another example of Infinity Ward moving fast on balance instead of sitting on early complaints until launch.

Cachette Joins the Map Pool

The update adds Cachette, a new core 6v6 map built around an abandoned wine warehouse and mechanic's garage near a French rail terminal.

Cachette matters beyond just being one more map to play. With it added to the pool, there are now enough maps in the beta for Infinity Ward to turn on map voting, which lets players actually have a say in what comes up next instead of taking whatever the rotation hands them.

Adding another 6v6 map this early should also help the beta feel less repetitive for anyone who has already put a few hours into the current pool.

Map voting is also worth flagging on its own. It's a small feature, but it changes how a session actually feels. Instead of grinding through a map someone doesn't enjoy while waiting for a better one to come up in rotation, players now get to weigh in directly.

Inflation Adds a Risk and Reward Loop

Inflation is the new mode arriving with this patch, and it's built around chasing down money. Eliminating enemies drops cash, and players who stack up a lot of it become high-value targets that everyone else on the map wants to hunt down.

Holding onto that cash builds a higher multiplier, which raises the stakes the longer a player survives while carrying a big stack. It creates a loop where being rich is an advantage, but it also paints a target on your back for the rest of the lobby.

Inflation gives beta testers something different from the usual 6v6 modes already available, and it should be a decent change of pace between matches.

What makes Inflation interesting is how it changes team behavior mid-match. In a standard Team Deathmatch or Domination game, every kill is worth the same. Here, the value of a target shifts constantly, so squads have to actually track who on the enemy team has been racking up eliminations and cash rather than just pushing the nearest red dot on the map. It's a small twist, but it changes how coordinated a team needs to be to hold onto a lead.

Transit 213 Gets Easier to See

Infinity Ward also made visual tweaks to Transit 213, brightening some of the map's darker corners and adjusting the overall colour balance.

It's a smaller change compared to the weapon and audio work, but visibility issues can quietly wreck a competitive map. Players should have an easier time spotting enemies hiding in Transit 213's shadier sections after this update.

Daily Challenges Can Be Rerolled Now

One quality-of-life fix worth calling out: players can now reroll Daily Challenges they don't want to bother with.

That's a small but useful addition for anyone stuck with a challenge tied to a weapon, attachment or mode they'd rather skip. It makes the beta's progression loop feel a bit more forgiving overall.

Bug Fixes and Known Issues

This patch also cleans up several bugs from the opening day, including problems that could block players from starting or finishing the mobility course, incorrect footstep audio on wet surfaces, Gunsmith errors, and magnified optics appearing opaque while aiming down sights.

Not everything is fixed yet. Infinity Ward is still looking into a known issue where players can't join Kill Block matches that are already in progress, along with reports of frame-rate drops when cooking lethal equipment. Both remain open for now rather than resolved in this update.

What's Next for the Beta

This is only the first update, and the beta is still early. The Early Access Beta runs from August 21 through August 25, and the Open Beta follows on August 28 through September 1, opening things up to a much wider group of players.

Infinity Ward has confirmed it's still watching feedback closely, particularly around movement audio and weapon balance, so more changes are likely before the current patch is anywhere close to final.

Also Read: Call of Duty: Modern Warfare 4 NEXT Reveal Covers Movement, Gunplay, Kill Block and the Beta

For anyone jumping in this weekend, the changes worth keeping in mind are the quieter footsteps, the ISO Nightshade and Oris 8.6 nerfs, and the new Cachette map and Inflation mode.

The Bottom Line

Infinity Ward's first response to beta feedback is a fairly substantial one. The footstep and gear audio reduction is probably the biggest single change here, and it looks like the studio is trying to find a middle ground where sound still matters without letting players track enemies from across the map.

The weapon changes tackle the early balance complaints directly, especially around the ISO Nightshade, Oris 8.6 and Frangible Rounds, while Cachette, Inflation and map voting give players more content and more control over their matches.

The bigger point here is that Infinity Ward is clearly reading what players are saying and acting on it quickly. With the beta still running and the Open Beta yet to come, expect more of this before Modern Warfare 4 actually launches.

Call of Duty: Modern Warfare 4 launches on October 23, 2026.