This mode would allow 2 or more people to play in the same game together to create a sense of real life, they could interact by a chat hidden but shows itself when you press Shift+W for example. An example of this mode would be that one player is the driver and one is the guard, the guard mode could be activated when you press something in the coaches or end cab depending on what train you're in. The guard would have free will to close/open the doors when the player likes and can stop the train if they want to. The player could also be a dispatcher despatching the trains from the stations this mode could be activated when you click something on the platform like a dispatcher's outfit for example and they can work with the guard to dispatch the train from the manned stations. So if this is (hopefully) made there would be 4 roles: Driver, dispatcher, passenger and guard.
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And what does the guard do in game? Right now that equates to Open doors Wait 60 seconds close doors train moves to next station open doors Wait 60 seconds close doors
Would be a complete rewrite of the system etc If they can't (or won't) do programmable PIS in cab how're they going to do ticketting systems etc?