The matchmaking debate in Call of Duty finally has hard numbers behind it, and those numbers don’t do many favors for the system fans keep demanding.
With Modern Warfare 4’s beta landing this coming weekend, the Call of Duty team used a new thread to confirm that two matchmaking systems will be live simultaneously: the one added in Black Ops 7 Season 5, and the open matchmaking that shipped with Black Ops 7 last year.
Call it what it is. This isn’t a middle ground — it’s a data collection run.
Why anyone cares this much about an algorithm
Your evening lives or dies on matchmaking. Are you the one getting steamrolled, or the one doing the steamrolling? That verdict is handed down by an algorithm before the map even loads, and that’s exactly why the subject never cools off in the Call of Duty community.
The studio rolled out open matchmaking after years of grievances about aggressive skill-based matchmaking, a system many players felt punished them for being good at the game. Open leans on randomness instead, and that randomness produces lobbies that feel more varied and more dynamic.
Inspiration for the newer system came from the matchmaking used in the original two Black Ops games. It has also generated no shortage of questions.
The vague explanation that satisfied nobody
In July, Call of Duty described the new system as building on what the studio has “learned, with smarter team balancing, wide match variety, improvements that help keep matches full, and a better experience for mixed-level parties.”
Fans were confused about what any of that meant in practice. After spending time with it, a lot of them reached a much blunter conclusion: open matchmaking was better.
Which is where that conclusion runs into trouble.
The stats the team pulled out
According to the Call of Duty team, match quits have dropped since the new strategy went live. With last fall’s open matchmaking in place, players bailed on matches more often, recorded fewer kills, and reported in surveys that they were having less fun.
Here’s the team’s own breakdown: “We know some players like Open, but the issues were clear. For 80% of players in BO7 from launch to Season 04, Open vs. Standard saw: • 32.7% higher quit rates • 14.4% fewer kills per minute • 5.3% lower win rates • 59.2% more ‘Not Fun’ ratings On Nuketown 24/7, quit rates…”
The summer system has handed some of the game’s best players stiffer competition. It’s also seen them quit less often.
What this means for October
By running both systems side by side, Infinity Ward buys itself more time with the data before committing to anything for the full release. Nothing has been locked in about which matchmaking ships in October.
There’s also a chance the beta’s numbers look nothing like what preceded them. MW4’s beta could draw a bigger crowd than Black Ops 7 has managed in recent months. Modern Warfare is the bigger of the Call of Duty subfranchises, and a brand-new entry tends to bring in newcomers — particularly during a window when the release calendar is thin.
Matchmaking isn’t the only item on the beta’s agenda. The build also carries quality of life improvements players have been requesting, the sort that tackle issues the series has been dragging along for the better part of a decade.
If you have a horse in this race, the weekend is when your opinion turns into evidence.




















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