Supported platform family
The official site links Steam, Epic Games Store, Xbox and PlayStation storefronts. The published platform line covers PC, Xbox Series X|S and PlayStation 5.
What is officially confirmed
| Feature | Evidence | What we can say |
|---|---|---|
| Four-player co-op | Official site | Up to four Marines can play together. |
| Cross-platform voice chat | Official site | The developer advertises newly added cross-platform voice chat. |
| Friend voice-chat issue | Patch 1 | A cross-platform friends voice-chat issue was listed fixed. |
| Xbox friend invite issue | Patch 1 | An inability to join after accepting an invite was listed fixed on Xbox. |
Invite checklist
Update every client, recreate the lobby and use the current in-game Social interface. We do not publish guessed button labels or account-linking steps because the retrieved official pages do not document the exact retail UI sequence.
If the lobby still fails
Separate friend invite, public matchmaking and voice chat. Record host platform, client platforms, game versions, region and exact error, then follow Matchmaking Not Working.
Evidence used
official game site · official Patch 1 controls and connectivity fixes · matchmaking diagnostics
Community reports describe individual experiences and demand. They do not prove that every player, platform or mission has the same result.