Comparing it how? 

You have to train it yourself. 

I doubt there were Hamians archers at this time, I mean with those long robes, what I've seen in live drawings and frescoes are trousers.

Is there any big thing being added to 29? that also happens to start with a "c"?

I didn't interpret that! I truly appreciate you asking for clarification, and I hope I understood your question when answering. Please don't resist  (that can come out the wrong way). Also, there have been some discussions regarding walls, in principle I thought: Which is based the discussion I think you are referring to: https://wildfiregames.com/forum/topic/168544-should-units-from-siege-towers-be-able-to-ungarrison-over-walls/#comment-762718.   Of course I agree with many things you say in that link, for example that "the game does not distinguish different undergrounds or soils and their respective fertility and may only have occasionally preferred/preset locations for fields (shown as "raw farmland") that (I believe) give a slight bonus to farming. Similar argumentation would possibly go for livestock stables", which I mentioned briefly in my suggestion 22 ("fertility considerations with terrain and weather") and: This could give fun situational (and civ dependent) advantages for one or the other, and added complexity by water management is open.