Modern Warfare 2 Cross-Play Live on PS3, Xbox 360, PC via ClassicsGG
The ClassicsGG project allows PlayStation 3, Xbox 360, and PC players to join matches without modifying their console hardware.
Key points
- Cross-play is now live for Call of Duty: Modern Warfare 2 across three platforms.
- Console users require no system modifications to participate in these sessions.
- PC participants must hold a paid subscription to the project’s Discord server.
The ClassicsGG project has enabled cross-platform multiplayer for Call of Duty: Modern Warfare 2, allowing users on PlayStation 3, Xbox 360, and PC to play together without altering their console firmware or hardware settings.
Root cause
The original video demonstrating this capability was removed from social media following a copyright claim, according to Windows Central. The outlet noted that it remains unclear whether the takedown request was legitimate or erroneous. Windows Central states that there is a full page dedicated to explaining how the cross-play functionality works.
Attack path
Windows Central reports that joining a match requires specific coordination rather than standard in-game discovery. Xbox 360 users must locate the host’s gamertag, identified as classicsgg, on Xbox Live and join that specific session. Alternatively, players can send a direct message or game invite to the ClassicsGG account, which will then send an invitation back to the user.
Affected versions
The functionality applies to Call of Duty: Modern Warfare 2, which launched seventeen years ago. The supported platforms include the original PlayStation 3, the Xbox 360, and personal computers. Windows Central states that the project is currently live and operational for these specific legacy environments.
Mitigation
PC players face additional access controls compared to console users. According to Windows Central, individuals playing on personal computers must maintain an active subscription to the ClassicsGG Discord server. This requirement is explicitly designed to help deter and prevent cheating within the cross-platform matches, adding a layer of verification for non-console participants.
Why it matters
Security teams should note that legacy software often lacks modern authentication protocols. When third parties bridge disparate platforms, they introduce new trust boundaries. Organisations managing older systems must verify that any external connectivity tools do not inadvertently expose internal networks. Teams usually assess whether legacy endpoints can safely communicate with modern infrastructure without compromising data integrity.
What to do and how to stay safe: Call of Duty: Modern Warfare 2
- Verify that legacy gaming consoles are isolated from sensitive corporate networks.
- Monitor for unauthorised third-party services connecting to older hardware.
- Ensure that any cross-platform tools used comply with organisational security policies.
- Review access controls for personal devices accessing external multiplayer services.
Step-by-step guide: Password Policies Examples That Reduce Password Fatigue
General security guidance from the Vector Bulletin newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
Do I need to mod my console to use this cross-play feature?
No, console players on PlayStation 3 and Xbox 360 do not need to modify their systems.
How do Xbox 360 users join a cross-play match?
They must find the host’s gamertag on Xbox Live or exchange invites with the ClassicsGG account.
Is there a cost for PC players to participate?
Yes, PC players require a subscription to the ClassicsGG Discord server to help prevent cheating.
