This will be the 1st of 2 posts on the pivotal turn of my 1st Italian Wars campaign. When you left us last time Milan was besieging Bologna whilst trying to keep Genoa away from Milan. To be successful Milan must storm Bologna this turn and fight Genoa, so they must split their available mercenary pool.
THe 1st battle is the attempted storming of Bologna. Bologna is defended by its home army of a pike block, 2 aquebusier troops, 2 regiments of knights and a cannon. Milan needed cannons to blow the walls down. Mercenary selection is randomised by troop class - Cavalry, infantry and missle troops. Cannon are readily available so they started with missile troops and 1 troop of crosbowmen, 2 troops of aquebusiers and an organ gun later they finally got a cannon, giving them 2. But now over 1/2 the army was missile troops, not great for storming a town.