You don't know if it's coming from the left or the right, but your column has suddenly come under fire. A musket ball punches into your stomach and knocks you from your horse.
You hear a steady crackle of musketry overhead and feel the wind of the shots fly overhead. You need to move. You're wounded and in the middle of the crossfire. Do you just run, crawl and stumble to cover? Or do you try to get back on your horse?