The specifics of the fighting are down to how much depth you want to go into. But there are other things to bring to the mix.
For example, if you want to drill down into how a trained fighter operates, things such as Gross, complex and fine motor skills are important to consider.
When someone is calm, with all the time in the world, fine motor skills are easy: writing would be a good example precise manipulation of objects etc, Complex motor skills are more general, be able to jab away at a keyboard. Gross motor skills are swinging whole limbs.
From 10 years of martial arts training and another 10 years in the Police in a front line role, I can safety say that the kind of complex movements you see in martial arts films are neither practical nor possible. Fine goes out of the window very quickly and complex are about as good as your going to get.
As a bit of a MMA fan, this is an excellent video (and one of the best fights I ever watched - live!) which shows two very highly trained MMA fighters going through all the above:
******** HEALTH WARNING ITS NOT A PRETTY FIGHT - BLOOD IS SHOWN ***********
In relation to the points on shooting. Quick, unconscious reaction would be a major no no and is in fact trained out of you.
From several years on a firearms unit and also two years in the territorial army one aims fast, shoots slow. The weapon is brought to bear, you gather the sight picture, control your breathing to reduce movement as much as possible, make the shoot / no shoot decision and then squeeze. Diffirrent people can do this at different speeds. Certainly in the Police part of the assessment is you have to be able to show aptitude for doing it quickly (for example the sight picture will be gathered and decision will be made as the breathing point is reached), but its not the moviesque snap shots one sees.
This is an excellent video still used in training which shows how quick that process can be.