I recently studied a Jason Bourne fight scene in The Bourne Identity to learn all I could about writing a good fight.

I recently studied a Jason Bourne fight scene in The Bourne Identity to learn all I could about writing a good fight.
I had to begin not with a fully outlined plot, but with a fully-fleshed person.
Have you received feedback saying that your characters feel manipulated by the author? If so, you might have a broken causal chain.
Create a sense of the inevitable.