Co-op campaigns have a briefing interface, but there may be potential issues.

[GreyVacuum]

I found that in the original settings of Gamemd.exe, the co-op campaign supports opening the briefing interface, which requires an online connection. However there is an interaction compatibility issue on yrpp-spawner (cncnet5.dll might block this aspect), and the briefing interface will display the "Brief:Error" content the csf.

The TAB key is still used to view the player's, while the interaction button on the sidebar interface will be used to open the briefing interface.

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