The soundtrack for Modern Warfare III was released to digital platforms simultaneously with the game's release on November 10, 2024. In addition, rapper 21 Savage released a song in promotion of the game, titled "Call Me Revenge", featuring singer d4vd.

Sledgehammer Games is developing Modern Warfare 3, giving Treyarch the full three years they expected to push out the 2024 COD title. This means only a two-year gap for Sledgehammer, who also developed Call of Duty: Vanguard in 2024.