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Call of Duty: Modern Warfare 4Call of Duty: Modern Warfare 4 · All · version Launch (Oct 2026)

Hit registration and desync in Multiplayer

UnconfirmedUnpatched

Updated

Players say they land many shots before an enemy goes down, die after reaching cover, or see delayed kills in Multiplayer since launch. No acknowledgement from Infinity Ward found.

Lifecycle

Reported · stage 1 of 5

5days open

Since first report

  1. Reported (reached) · now
  2. Confirmed (not yet)next
  3. Acknowledged (not yet)—
  4. Partial (not yet)—
  5. Patched (not yet)—
In current stage 5d
Workaround none yet
Game
Call of Duty: Modern Warfare 4
Platform
All
Affected version
Launch (Oct 2026)
Kind
Bug
Confirmation
Unconfirmed
Patch status
Unpatched
First reported
Last updated
Latest fix or workaround
None on the record
How we label issues

Kind

  • Exploit: Repeatable and clearly advantageous to the player using it; essentially cheating.
  • Bug: Everything else: crashes, launch errors, broken features, visual or audio faults.

Confirmation

  • Confirmed: A developer or official account acknowledged it, an official known-issues board lists it, it appears in official patch notes, or 100+ corroborating posts on X were actually counted.
  • Unconfirmed: None of the above yet. Press articles are reports and never confirm an issue on their own.

Patch status

  • Unpatched: Known and open; no fix has been claimed.
  • Reported as unpatched: Players credibly report it persisting, including after a fix claim that never appeared in patch notes.
  • Partially patched: Official patch notes list a fix, but credible later reports say it still happens, or the notes only cover part of it.
  • Reported as patched: A developer, official account or player says it is fixed, but no official patch notes list it.
  • Patched: Official patch notes (a Steam news post or the publisher's patch notes page) list the fix, and nothing credible says it still happens.

Active means still affecting players: Unpatched, Reported as unpatched or Partially patched. Patched and Reported as patched issues are closed.

Estimated impact runs from 0.1 to 9.9 with one decimal. xploitr sets it from the rubric below. Factors: advantage to other players, reach, play blocked or progress lost, frequency, and whether a reliable workaround exists. Patched issues keep their historical impact.

Signed-in community members can report new issues and suggest status changes, such as Fixed or Still unpatched, with their platform, version and a source. Every report and suggestion is reviewed by an editor before anything on the record changes. A new issue is published only when the report has at least three independent sources (distinct accounts, or distinct sites for web pages, after blocked sources are removed), unless the owner approved that issue by hand. Approved input appears as a dated Update from the xploitr community source on the issue's timeline, credited to the member's username (reports can opt out and stay anonymous); nothing is counted or published automatically.

Impact bands

  • 0.1–2.9 Low: Cosmetic, audio, text and UI glitches with no effect on play.
  • 3.0–4.9 Moderate: Narrow gameplay bugs or small exploits, rare or with a workaround.
  • 5.0–6.9 Elevated: Bugs most players in a mode notice: hit registration, desync, balance-breaking damage.
  • 7.0–8.4 High: Widely abused competitive or economy exploits; crashes many players hit.
  • 8.5–9.9 Severe: Launch blockers, widespread progress or item loss, exploits that break the game for everyone.

Each issue has a dated timeline of updates (report, acknowledgement, announcement, fix, workaround). Update summaries are our own words; quotes and excerpts are the source's words, or our English translation when marked.

Estimated impactEstimated impact 5.0 out of 9.9, ElevatedOur estimate from how many players it reaches and what it costs them.

Updates · 8

Show all 8 updates
  1. Report

    Oct 24: a player on a wired connection with low, stable ping reports odd hit registration and desync.

    Community report on reddit ·
    “I’m having a really weird hitreg/desync issue in MW4 and I’m wondering if anyone else is experiencing the same thing.. My ping is low and stable, I’m on a wired connection, and I have no packet loss.”
    Community report on reddit · Open source
  2. Report

    Oct 24: a player lands shots confirmed by hit markers, then dies and the killcam tells a different story.

    Community report · Steam · Forum reply ·
    “It's hit registration. I've had times where I'll land a few shots on a target, which is confirmed by the hit markets, and then get killed by them, only for the kill cam to state that I only hit them…”
    Community report · Steam · Forum reply · Open source
  3. Report

    Oct 25: a player fired 5 shots and got 4 hit markers, but the killcam showed 3 hits.

    Community report on reddit ·
    “The hit detection in this game is somehow worse than BO7. In this clip I shot the guy 5 times (look at ammo count), got 4 hit markers, then killcam shows I hit him 3 times..”
    Community report on reddit · Open source
  4. Report

    Oct 25: a long-time player says lag and hit registration problems in MW4 are worse than in any recent Call of Duty.

    Community report on reddit ·
    “We're seeing unprecedented levels of lag and hit registration issues in MW4. I've played almost every COD for the past decade and I've never seen such widespread lag issues.”
    Community report on reddit · Open source
  5. Report

    Oct 25: two MAR9 shots showed 110 damage in the damage report, which should have been a kill.

    Community report on reddit ·
    “On my screen, I landed two shots with the MAR9. The damage report showed both landed for 110 damage (should have been a kill).”
    Community report on reddit · Open source
Sources · 88 CommunityCommunity report · reddit+ 7 similar community reportsHide
Community reportreddit
“How bad is the desync and hit register? It feels wildly random and incoherent sometimes.”
  • Community report · redditOpen
    “I have been playing with mates in Multiplayer and there is a weird desync, lag compensation or both. Where bullets seemingly dissapear through some players..”
  • Community report · redditOpen
    “I was getting a lot of desync - despite 1 gbps fiber internet and Ethernet in - and in looking for solutions I saw a lot of people say it feels like they are getting latency added to their stack to…”
  • Community report · redditOpen
    “I’m having a really weird hitreg/desync issue in MW4 and I’m wondering if anyone else is experiencing the same thing.. My ping is low and stable, I’m on a wired connection, and I have no packet loss.”
  • Community reportSteam · Forum replyOpen
    “It's hit registration. I've had times where I'll land a few shots on a target, which is confirmed by the hit markets, and then get killed by them, only for the kill cam to state that I only hit them…”
  • Community report · redditOpen
    “The hit detection in this game is somehow worse than BO7. In this clip I shot the guy 5 times (look at ammo count), got 4 hit markers, then killcam shows I hit him 3 times..”
  • Community report · redditOpen
    “We're seeing unprecedented levels of lag and hit registration issues in MW4. I've played almost every COD for the past decade and I've never seen such widespread lag issues.”
  • Community report · redditOpen
    “On my screen, I landed two shots with the MAR9. The damage report showed both landed for 110 damage (should have been a kill).”
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