Hi, Downloaded this and have been playing it lately. Having a lot of fun. My first game had a random choice land me as a Pirate, so I've been figuring out that mode of play. And this has led to one question. I've got a bunch of Pirate cannon outside a Spanish town with a fort. But I don't seem to be able to bombard to reduce the fort defense percentage. Is this expected and is there a reason for it? Or did I find a bug?