ArkaEvren
Call of Duty

GAME · 2003 · USA

Call of Duty

Developer
Infinity Ward
Publisher
MediaQuest Holdings, Aspyr
Platforms
N-Gage, Microsoft Windows, macOS, PlayStation 3

9 archived facts 2 topics 1 source Last reviewed Sep 2026

  • Call of Duty — production image

9 Interesting Facts About Call of Duty

Production Story (8)

  1. #001

    Work on Call of Duty started in April 2002 under Chief Creative Officer Vince Zampella, and by May 2003 the team had grown to 27 people.

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  2. #002

    The game ran on an upgraded version of the id Tech 3 engine from Quake III Arena, combined with Ares, an in-house skeletal animation system.

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  3. #003

    Infinity Ward wanted a World War II game built around squad play, with smart teammates helping out in large-scale battles; the team researched the period's weapons, artillery and vehicles in depth for authenticity, on a budget of $4.5 million.

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  4. #004

    The developers built an AI pathfinding system called "Conduit," woven tightly into the squad-based campaigns, which let the AI pin enemies down with covering fire and get past obstacles like fences and windows.

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  5. #005

    The AI was designed to flank enemies, bounce grenades into position and move from cover to cover.

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  6. #006

    The multiplayer modes were built with modders in mind: lead designer Zied Rieke explained that gameplay and modes were written in script, making it very easy for players to create their own multiplayer mods.

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  7. #007

    Michael Giacchino composed the music, which first came out in 2003 as the Call Of Duty Official Soundtrack Sampler CD, part of the EB Games pre-order package in Europe.

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  8. #008

    Justin Skomarovsky was brought in to write an extra piece, "Age Of War," for the intro cinematic leading into the "Call Of Duty" title screen.

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Behind the Scenes (1)

  1. #009

    Lead animation director Michael Boon said actions that earlier games would have scripted were handed over to a dynamic AI in Call of Duty, so levels play out differently each time.

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Related pages

Sources & editorial notes

Sources for the entries on this page

  1. Wikipedia Call of Duty (video game) — WikipediaEncyclopedia · accessed 17 Sep 2026

Information from external sources is independently selected, consolidated and edited by Arka Evren. Sources are listed for verification and further reading. Encyclopedia text is used under its licence (CC BY-SA). How we work