: Introduced AI-controlled allies that support you with covering fire, moving away from the "lone wolf" style of earlier shooters.

: Listed for $24.99 as a bundle with the United Offensive expansion. Physical Media & Collectibles

For collectors, original 2-disc CD-ROM sets and "Big Box" editions are widely available through resale markets:

Vintage 2003 Call of Duty PC Game - Original v1.0 2-Disc Edition - Infinity Ward Activision Retro Gaming - Y2K PC Big Box Era - Jewel Case

: Used 2-disc copies typically range from $6.99 to $18.00 . Sealed original copies can reach $50.00 , while rare graded collectibles are listed for significantly higher.

: Features historically researched WWII weapons, vehicles, and cinematic sound design.

Buying digitally is the most reliable way to play on modern hardware like Windows 10 or 11.