In the field the Swedes used squadrons (battalions) and brigades (Brzenzinski, 1995). Brigades would have 3 or 4 squadrons.
The Spanish were still using the Arquebus in the 30 Years War. DBR annoyed me for several reasons but the fixed ratios of musket to arquebus and the relatively ineffectiveness of the arquebus were two of them, particularly because the Spanish came out badly in this formula. As a result I wanted to find out what the difference was and why the Spanish may have retained the arquebus longer than others (if, in fact, they did).