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Patch Notes

MW4 28 October update: first weapon tuning, SMG buffs and a Quick Fix nerf

Infinity Ward's first balance pass trims upper-body damage on the Han 86 and Oden, buffs SMG limb damage, stops Quick Fix healing through damage and slows diving to stop an exploit.

By n0xen3 min read

Infinity Ward’s 28 October update is the first real weapon balance pass for Modern Warfare 4. The studio says the aim is a more consistent time to kill by evening out hit-location damage, plus a lift for SMGs, which mostly comes from removing their arm and hand damage penalty. The same patch reins in Quick Fix, temporarily slows diving and closes several DMZ exploits.

Assault rifles

  • Han 86: max damage range up from 1120 to 1200, but neck and upper torso multipliers drop from 1.1 to 1.0. Longer reach, fewer lucky upper-body shots.
  • Kastov 762: max damage range 950 → 1050.
  • M4: max damage range 990 → 1020.
  • Oden: neck and upper torso multipliers 1.2 → 1.1, lower torso 1.1 → 1.0. The Sentinel Apex also loses range (max 870 → 820, mid 1810 → 1740) and now carries a small muzzle velocity penalty.
  • Hyeon Burst (Hyperburst Apex): full-auto max damage 37 → 34, but its max damage range grows from 970 to 1220 and the first mid-range step is removed.
  • Patriot XMR: smaller recoil control penalties on the EXP Haste 80L 14" Light Barrel (8% → 6%) and the FJX Fury IV Grip, Skeleton (5% → 4%).

SMGs

All five SMGs below have their upper arm, lower arm and hand multipliers raised from 0.95 to 1.0, so limb hits no longer cost a bullet as often.

  • ISO Nightshade and VEL 46: limb multiplier change only.
  • PPSh-41: ADS time 300 → 280 ms plus small bumps to strafe, crouch, movement and sprint speed.
  • Wz.55 Striga: max damage range 440 → 470, mid range 825 → 840.
  • X-58 Nyx: head multiplier 1.25 → 1.3; the Void Apex gains range (max 437 → 460, mid 788 → 815).

LMGs and shotguns

  • APOC-338: mid damage 38 → 37, mid range 1980 → 1900, min damage 35 → 33.
  • FiNN LMG: mid range 1720 → 1620 and upper arm multipliers 1.1 → 1.0.
  • Type 73 (Assault Apex): min damage 19 → 20.
  • Warlord (12G Slug Rounds): second mid range 900 → 810.

Gameplay and fixes

  • Quick Fix: health regeneration now stops when you take damage. Infinity Ward says it was making players tankier than intended.
  • Diving: dive speed is cut by 23% as a stopgap after an exploit that gave players a speed boost. A proper fix is in the works.
  • A Riot Shield out-of-bounds exploit has been closed.
  • UAV visibility on Sentry is better, and Gun Game no longer forces everyone into the Reece Operator.
  • Challenge tracking fixes for Melee Kill, Backstab and Takedown; Point Blank and Longshot range cut-offs are more forgiving.
  • Nine UI fixes, including missing camo progress counters and military camos showing as locked after weapon Prestige.

DMZ

  • Possum can no longer be used while the squad that downed you is nearby, or before four minutes have passed. It also no longer revives players who abandoned their Operator, and a black screen after a full squad wipe is fixed.
  • Fixes for Free Loadout items vanishing after 3D Printer backpack additions, weapons disappearing or dropping when moved between slots and backpacks, the 3-Plate Armor Vest missing at DMZ level 37, and the Airbase Access Card upgrade being blocked during a story mission.
  • Several more DMZ exploits closed (not detailed).

Still known issues

The official list now includes Patriot XMR Platinum camo progress not showing correctly (it still counts), some Calling Card challenges not tracking, a Best Play selection issue, and players who enter Classic Prestige from the DMZ menus being unable to create new multiplayer classes until relocked loadouts are deleted.

Weapon Balancing

  • BuffHan 86

    Han 86: max damage range 1120 to 1200.

  • NerfHan 86

    Han 86: neck and upper torso multipliers 1.1 to 1.0.

  • BuffKastov 762

    Kastov 762: max damage range 950 to 1050.

  • BuffM4

    M4: max damage range 990 to 1020.

  • NerfOden

    Oden: neck and upper torso multipliers 1.2 to 1.1, lower torso 1.1 to 1.0.

  • NerfOden

    Oden Sentinel Apex: max range 870 to 820, mid range 1810 to 1740, muzzle velocity penalty added.

  • ChangeHyeon Burst

    Hyeon Burst Hyperburst Apex: full-auto max damage 37 to 34, max damage range 970 to 1220, first mid range removed.

  • BuffPatriot XMR

    Patriot XMR: lower recoil control penalty on the EXP Haste 80L light barrel (8% to 6%) and FJX Fury IV Grip (5% to 4%).

  • BuffISO Nightshade

    ISO Nightshade: arm and hand damage multipliers 0.95 to 1.0.

  • BuffPPSh-41

    PPSh-41: ADS 300 to 280 ms, small movement speed increases, arm and hand multipliers 0.95 to 1.0.

  • BuffVEL 46

    VEL 46: arm and hand damage multipliers 0.95 to 1.0.

  • BuffWz.55 Striga

    Wz.55 Striga: max range 440 to 470, mid range 825 to 840, arm and hand multipliers 0.95 to 1.0.

  • BuffX-58 Nyx

    X-58 Nyx: head multiplier 1.25 to 1.3, arm and hand multipliers 0.95 to 1.0, Void Apex range increased.

  • NerfAPOC-338

    APOC-338: mid damage 38 to 37, mid range 1980 to 1900, min damage 35 to 33.

  • NerfFiNN LMG

    FiNN LMG: mid range 1720 to 1620, upper arm multipliers 1.1 to 1.0.

  • BuffType 73

    Type 73 Assault Apex: min damage 19 to 20.

  • NerfWarlord

    Warlord 12G Slug Rounds: second mid range 900 to 810.

Gameplay Changes

  • Change

    Dive velocity reduced by 23% as a temporary fix for a speed-boost exploit.

Map Updates

  • FixSentry

    Improved UAV visibility on Sentry.

Equipment Changes

  • NerfQuick Fix

    Quick Fix health regeneration now stops when you take damage.

Bug Fixes

  • Fix

    Riot Shield out-of-bounds exploit closed.

  • FixGun Game

    Gun Game no longer forces the Reece Operator.

  • Fix

    Melee, Backstab and Takedown challenge tracking fixed; Point Blank and Longshot range cut-offs eased.

  • Fix

    Nine UI fixes including camo progress counters and military camos locking after weapon Prestige.

  • Fix

    DMZ: Possum revive and black-screen bugs, Free Loadout item loss, disappearing weapons and the level 37 armor vest reward fixed; several exploits closed.

Other Changes

  • Nerf

    DMZ: Possum blocked while the enemy squad is nearby or before four minutes have passed.

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