Playing shooters where you need to turn your head along with a weapon seems to me a bit ridiculous. Is it possible to do something so that head tracking is independent of the weapon? Can you somehow screw the emulator of an additional mouse that will be responsible for turning the head and the main mouse is already for the pointer of the movement and the sight of the weapon?
That is only possible if games support decoupled head/weapon movement themselves, vorpX cannot change the actual gameplay. The only shooter I’m aware of that does that is Arma III. Together with OpenTrack to simulate TrackIR input instead of vorpX’s default head tracking you can configure the game for decoupled walk/look.