So, kind of offtopic, maybe, but I have been playing Total War: Shogun 2 lately and I was wondering if anyone could comment on the general historicity of how the troops and tactics are presented. I know in Total War the "special units" like ninjas and firebombers are usually pretty silly, but how well presented are the ashigaru and standard samurai troops? If I want to play a battle "realistically", what sort of troop composition would be typical, or is the game so terribly inaccurate that it would be silly to even ask that? And is the whole everyone has grappling hooks to climb up castle walls thing as ridiculous as it seems to me?

I suppose I am really hoping for someone to do a post on the game for the edification of those of us who are better at video games than we are at history.