Call of Duty has completely overhauled the Battle Pass system in Call of Duty: Modern Warfare II and Warzone 2.0 while still retaining the "traditional" functionality of the pass.
With the release of Season 1, we've finally got to have our first look at the new Battle Pass, and in this guide, we discuss everything you need to know about the new system. This is how the new Battle Pass works in both Modern Warfare 2 and Warzone 2.0.
When you open your Battle Pass tab, you will notice a complete combat map referred to as the Area of Operations (AO), instead of the conventional horizontal long strip of tiered content.
With Season 1's release, the AO you see is called The Season 1 Battle Pass AO and is further divided into 21 different areas called the Combat Sectors. These Combat Sectors start from A0 and finish at A20.
A0 is a bonus sector that gives you instant rewards for purchasing the Battle Pass, similar to how you got the rewards in the previous games and their iteration of the Battle Pass. The real grind begins from sector A1.
