Scott Eckert is a sound designer and audio engineer for Treyarch, working on the music in Call of Duty 3, Call of Duty: World at War, Call of Duty: Black Ops, Call of Duty: Black Ops II, Call of Duty: Black Ops III, Call of Duty: Black Ops 4, Call of Duty: Black Ops Cold War, Call of Duty: Modern Warfare III, Call of Duty: Black Ops 6, and Call of Duty: Black Ops 7. He is most recognized for mixing and mastering the musical easter eggs for the Zombies game mode in Call of Duty: World at War, Call of Duty: Black Ops, Call of Duty: Black Ops II, Call of Duty: Black Ops III, Call of Duty: Black Ops 4 and Call of Duty: Black Ops Cold War. He mixed and mastered Lullaby for a Dead Man, The One, Beauty of Annihilation, 115, Abracadavre, Pareidolia, Coming Home, Carrion, Where Are We Going, Dead Again, Dead Flowers, Dead Ended, The Gift, Drowning, Shockwave, Mystery, Stormbound, I Am The Well, A Light from the Shore, Alone, Lost and Damned 8.