Peter 'Gonsalvo' Anderson's Piquet/Band Of Brothers II Edition rules are noteworthy for several reasons. Besides significantly revising and refining the original rules for Renaissance warfare, BoBII also offers 'Beat the Drum', an easy-to-use mechanism to generate armies.
BTD addresses one of the rather tedious aspects of Piquet - namely, its army selection mechanism. BTD offers a variety of different ways to select your forces for a given battle. BTD makes uses of the greatly expanded army listings included in BoBII under fourteen different "Campaign Musters." Using BTD, you can select an army in about 30 minutes, as compared to a couple of hours or so before.
We really liked BoBII and BTD. So much so, that we decided to make it a little more easier by automating the army selection procedure and making it available as an online application. You can read more about the application and Beat the Drum here.