I finished this good game many times, and you made a very great job. But i noticed an thing:
The Unit Veteran « Heavy SwordsMen » is too cheat, just with that and the trenches, you can win the game too easily
Edit: If you, players, want a hint for the last difficulty, try light spearman and trenches because they are a VERY good strategy, The spearmen’s attack deals 2 damage and is fastest than the enemy, and they not have a too expensive cost, with this strategy, I win the game another time with 204 in score
(Sorry if my English is bad, but i’m a french player, and I really wanted to tell to the dev they doing an good job)