For a similar feature within Call of Duty: Black Ops 4, see Black Market.
The Battle Pass in Call of Duty: Mobile
The Battle Pass is a Gameplay mechanic available in Call of Duty: Mobile, Call of Duty: Modern Warfare, Call of Duty: Warzone, Call of Duty: Black Ops Cold War, Call of Duty: Vanguard, Call of Duty: Modern Warfare II, Call of Duty: Warzone 2.0, Call of Duty: Modern Warfare III, Call of Duty: Black Ops 6, Call of Duty: Black Ops 7, and Call of Duty: Modern Warfare 4 that allows players to progress through tiers and earn certain unlockables, such as weapons, weapon blueprints, operator skins, vehicle skins, calling card cosmetics and COD Points.
Subpages[]
Battle Pass/Call of Duty: Mobile
Battle Pass/Call of Duty: Modern Warfare
Battle Pass/Call of Duty: Black Ops Cold War
Battle Pass/Call of Duty: Vanguard
Battle Pass/Call of Duty: Modern Warfare II
Battle Pass/Call of Duty: Modern Warfare III
Battle Pass/Call of Duty: Black Ops 6
Battle Pass/Call of Duty: Black Ops 7
Battle Pass/Call of Duty: Modern Warfare 4
Source: https://callofduty.fandom.com/wiki/Battle_Pass. This is an independent Call of Duty: Modern Warfare 4 reference page.