Check post #431 invites it has let me send out so far are on there. I'll go through the thread when I get in from work and invite everyone again.
Anyone wanting on just post up your Activision ID preferably as your COD and Activision accounts have to be linked for platform crossplay groups I believe.
". Does Warzone offer cross-platform support?
Yes. To make crossplay possible, Modern Warfare now requires players to log in to an Activision/Call of Duty account. If you don't have an Activision/Call of Duty account, you can create a free one here or in the game when you connect online for the first time.
Your Activision/Call of Duty account comes with a unique Activision ID, which is how you'll appear in game and how you and your friends can identify each other."
You can create an account here if you don't already have one.
Activision login page
profile.callofduty.com
Just click on your platform logo to create your account then link the two accounts in the profile section and post up your ID on here 👍.