Err...not exactly what you were after, but provides depth of information and first hand accounts of military life, procedures and practices as well as some first hand (comments, rather than extensive detailed reports) on combat from soldiers and civilians:
Going To The Wars, The experience of the British Civil Wars, 1638-1651. Charles Carlton, Routledge, 1992.
War In England, 1642-1649. Barbara Donagan, Oxford, 2008.
Both interesting and for semi-scholarly works, very readable, especially the Carlton.
Im sure there will be a host of more relevant suggestions from the better informed.