Guest Feature in Modern Warfare 3 on Xbox Live: Check Official Sources

I don't have real-time data on unannounced features. For the latest on Call of Duty: Modern Warfare III (2023) guest/co-op options:

• Check callofduty.com – official news/blog.
• Follow @CallofDuty on Twitter/X.
• Monitor Xbox Wire (news.xbox.com) for platform-specific features.
• Reputable gaming sites: IGN, GameSpot, CharlieIntel, TheGamer.

Historically, local split-screen guest play exists in MW2 (2022) and MW3 (2023) on consoles; online guest accounts are not supported – each player needs own Xbox profile + Game Pass Core/Ultimate.