Creating a custom game in Black Ops Cold War is rather simple. As with every Call of Duty game, players can load up a custom map to try out new loadouts, perks, weapons, or just learn the lay of the land.
It simply gives players an opportunity to practice their gameplay and get used to the new game. No matter how many years people have been playing CoD, each iteration brings something new and may cause you to change up you BPI or POV. That's why custom matches are so useful.
How to Create Custom Games in Black Ops Cold War
Head to the main lobby and click the Custom Games button. Then once on the new screen, click Edit Game Rules and go to town. Make the game in the exact way you want, give yourself a perk or a specific weapon. There are a total of seven new game modes you can play: VIP Escort, Control, Hardpoint, Domination, Search & Destroy, Free-For-All, and Team Deathmatch.
Additionally, there are Call of Duty League variants for Hardpoint, Control and Search and Destroy for those wanting to add a level of competition.
For the maps, it's dependent on the game mode you chose.