I have just finished reading Weapons and Warfare in Renaissance Europe by Bert S. Hall.
It examines several aspects of warfare in the later middle ages and sixteenth century, but concentrates on the effect of gunpowder in western Europe, gunpowder production, gunpowder weapon development and tactics, and its consequences in relation to other military arms and tactical development; heavy cavalry and pike squares.
It is a fine and detailed study, and although there was nothing that I did not know already, outside of gunpowder production and how it works as it is not as simple as "it goes bang", it does state WHAT IS KNOWN about firearms and tactics very clearly.