Is the animation of the arms speeding up as well. One could put a sound queue in the animation for when the step would occur to play.
Same goes for a notify to use camera shake event.
I believe there’s a tutorial with adding footsteps in a 3rd person game which could be applied to a fps just you don’t have the same visual queues in the animation to know where the sounds would go.
Adding shake
Cept modify the shake do its not so harsh and gave it play on the notify in animation.