I've just finished Battlegroup by Jim Storr. It's a good study of the tactics and equipment that would have been used, primarily by NATO, had things gone hot. The author looks at the differences between different national doctrines, and whether existing formations were the right size and composition. Storr's views are fromed by time spent in the British Army and years of wargaming, tweaking units to achieve the best results.
https://www.helion.co.uk/military-hi...83bf5a730213da