You need a custom matchmaking key in order to set up your own game and it ensures that you can control who is able to join the game, instead getting random people added.

How to Use a Key for Custom Matchmaking? Once you've gotten your hands on a key, hit the Custom Matchmaking button in the bottom right corner once you're in the lobby.

Everyone wants to know how to make a custom game and how to get a matchmaking key - here's all you need to know.

Custom Matchmaking are essentially private matches where you have control over who can join the game. Unlike traditional matchmaking, your squad aren't chucked into the first game available.