This guide will let you know how to change the Party Leader in Call of Duty Vanguard & Warzone.
The first thing you will need to do is open the social menu located on the top right side of the multiplayer menu screen, as shown in the image below.
If you are Playing on Playstation, you just have to press the triangle button to open the social menu. And then, you need to tap on the Party Tab.
From there, you have to select the person and tap on him, you will see a few settings for that person, and you have to click on “Promote to Party Leader”, as shown in the image below.
Now you will see that the person you choose is the leader of your party, and you will also find a crown label right next to his name.