Tech Desk 
Aug 25, 2024
Call of Duty, the iconic first-person shooter franchise, pioneered online multiplayer gaming since 2003. The series has captivated millions of players worldwide with its engaging gameplay and realistic war scenarios.
To ensure a seamless and enjoyable experience, Activision, the game's developer, employs skill-based matchmaking.
This system pairs players based on their skills, connection quality, and other factors. A strong internet connection is the backbone of online gaming. Call of Duty's matchmaking system prioritises connection quality above all else.
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A fast and stable connection ensures a smooth gaming experience, reducing lag and disconnections. This is why "ping is king" in the world of Call of Duty.
Matchmaking factors:
While connection quality is crucial, other factors contribute to the matchmaking process. These include:
- Playlist diversity: Offering a range of playlists to cater to different player preferences
- Recent maps/modes: Considering players' recently played maps and modes to ensure a varied experience
- Skill/performance: Pairing players based on their skills to create balanced matches
- Input device: Accounting for players' preferred input devices, such as controllers or mouse and keyboard
- Platform: Considering the player's platform, whether PC or console
- Voice chat: Enabling or disabling voice chat to accommodate different player preferences
Calculating player skill:
Call of Duty uses a combination of metrics to calculate a player's skill level. These include:
- Total kills: The number of kills a player achieves in a match
- Kill/death ratio: A balanced approach to assessing skill, considering both kills and deaths
- Kills/deaths by enemies: Accounting for self-killing and artificial skill manipulation
