Call Of Duty 4 : Modern Warfare
Call Of Duty 5 : World At War
Dead Silence is a Call of Duty 4 and Call of Duty: World at War Tier 3 perk that reduces a player's footstep noise significantly, allowing players to walk, sprint, and jump almost silently. This perk is unlocked at level 44 in Call of Duty 4, in Call of Duty: World at War it is unlocked at level 52. Dead Silence will not have an effect on weapon switching sounds.