Adding a guest on Xbox One Black Ops 3 is easy, and can be done in just a few simple steps. Here’s how to do it:

  1. Open the “My Games & Apps” screen on your Xbox One console.
  2. Select “Xbox Live”.
  3. Under “Profile”, select the user you want to add a guest to.
  4. Under “Features”, select “Guest”.
  5. On the right-hand side of the screen, under “Add a Guest”, select “Invite from Email Address”. Enter your friend’s email address and hit enter.
  6. Your friend will receive an invitation to join your game, and they will be able to use all of the features that are available to users who are logged in with their own profile (including voice chat and party chat). ..