Not being able to build your army in any level made this game boring even though I know perfectly well how to maneuver formations in medieval battle... there was no challenge except by scared of losing hours of work to a glitch... should that happen I'd never finish a game that the tutorial and description of which I really adore and have found few like it anywhere with this much polish.
Please save more often and own up to the fact that the level might take twice or three times longer than suggested by previous levels and the tutorial and the decriptions.
Thank you for your time in reading these screeds of text and I wish you all the best in the dev work; you clearly have a good grasp of the basics and many of the advanced techniques but you might benefit from watching Extra Credits' Youtube videos about game dev if you haven't already learned from them.