From what I've been able to gather, you ought to be able to use a DS4 controller for this game, only you need to manually bind the keys. Cool, sounds simple enough. Problem is... as far as I can tell, the game isn't recognized my DS4 at all. Could this be because it connects to my PC via bluetooth, or am I just going about this wrong?

Not really sure what to do other than set the controller to generic gamepad. Which auto-sets several control axes, but nothing else. Only I can't rebind the axes (and for whatever reason machine guns are set to axis 6, which is weird, but not terribly relevant here I suppose) nor can I bind any of the buttons/triggers in the menu.

What am I doing wrong?