button 12 is a dualshock 4 requirement for flight mechanics to work on pc,without it you have square toe tactics,a sony game that works better with a steam controller.maybe just a flight mode set up,no guns,just a knife.the game can be better than it is now.
I guess he is complaining something about controllers. But what exactly he is complaining about doesn't hit me. Maybe some more information about the issues would help.