Beta ends and launch priorities
Infinity Ward closed the Beta with a wrap-up of developer priorities heading toward launch; this record adds no new numeric balance profile.
Open dated record ↗CHANGE LOG · OFFICIAL SOURCE SUMMARY
MW4 Beta Patch Notes
A concise, dated ledger of Infinity Ward's documented Beta updates and the MW4 database records they may affect.
PATCH CONTEXT
Official Beta weapon roster
This official roster visual provides context for the weapon names referenced by the dated balance changes below. Exact pre- and post-patch values remain in the publisher's live patch record.
DOCUMENTED BETA ENTRIES
September 1, 2026 and earlier
These records document the MW4 Beta and are preserved as historical balance and playlist references. They are not retail patch notes; future retail updates will continue in this same hub.
Final weapon tuning pass
This is the final major documented Multiplayer weapon-tuning pass of the Open Beta, with official damage-range and multiplier updates across the affected weapon records.
Open dated record ↗Transit 213 24/7 and Open Beta Day 3 updates
The official Day 3 ledger activated Double XP and Double Weapon XP, added a Transit 213 24/7 playlist and documented separate Multiplayer, global and Warzone-only fixes.
Open dated record ↗Day 2 Ground War and Beta tuning
The second Open Beta day added the large-scale Ground War experience and documented tuning in the then-current Beta build.
Open dated record ↗Open Beta Weekend Two balance reset
Weekend Two opened with a fresh Open Beta build, a higher progression cap and broad balance work across weapons, movement, spawns, aim assist and killstreaks.
Open dated record ↗Resurgence preview and Beta readiness
The pre-Weekend-Two ledger entry covered the Resurgence preview, Zodiac context and known issues while the full multiplayer update was prepared for the following day.
Open dated record ↗Earlier Beta context: Monday, August 24
Infinity Ward adjusted multiple weapons to increase minimum time-to-kill, changed damage ranges and body multipliers, and continued evaluating weapon and attachment balance during the Beta. The active playlist list included Quick Play, Open Moshpit, Search and Destroy, Transit 213, Inflation and 3v3 Gunfight on Kill Block. The 10v10 Kill Block playlist was removed with a planned return during Weekend Two.
Bug fixes addressed an out-of-bounds exploit on Cachette, incorrect optic “Cons” for the Kastov 762, lobby music continuing in matches, repeated Gunny notifications and several interface issues. Artillery Beacon explosion audio was also adjusted for clarity.
Full official MW4 Beta Patch NotesAUGUST 23
Lotus, 3v3 Gunfight and weapon tuning
Lotus joined the map rotation, Gunfight 3v3 arrived on Kill Block and Transit 24/7 was added. The update reduced the M4 head damage multiplier from 1.5 to 1.2 and changed several other weapons and attachments. Attack Helicopter health was reduced by 45%. Infinity Ward also said spawn placement, TTK and attachment viability remained active areas of work.
AUGUST 22
Cachette, Inflation and visibility changes
Cachette and the Inflation mode entered rotation, enabling map voting with four maps available. Transit 213 received brighter shadow areas and an overall color-balance adjustment. Weapon changes began addressing community feedback on lethality, while footstep volume was reduced and multiple bugs were fixed.
AUGUST 20–21
Early Access opening content
The opening slate listed Rooftops, Silkworm, Transit 213 and Kill Block, together with Team Deathmatch, Domination, Hardpoint, Kill Confirmed, Mobility Course and Kill Block 10v10 Gunfight. The launch record also established the Early Access and Open Beta windows and identified known issues under investigation.
How patches affect this database
Beta screenshots remain useful evidence for what appeared in the captured build, but a later patch can supersede the balance values shown in them. The M4, attachment and killstreak pages therefore preserve their source labels and review dates instead of silently treating a newer patch as if it were visible in an older capture.
After each official update, the recheck order is: weapons and attachments named in the patch, affected loadouts, active playlists, maps and modes, then settings or interface records mentioned in bug fixes. Stable identity data such as a weapon name can remain valid even when damage or handling changes.