1.why does agriculture have anything to do with a ranking system
2. Army score. If you mean troops, then 6 well trained professional warriors, and 12 basically trained soldiers with general warfare knowledge. That is 18 if that is what you wanted by score.
3. This one actually makes me laugh. I said Caste not Castle a caste is in Mercian websters dictionary= : a division of society based upon differences of wealth, rank, or occupation.