Hello there, I see that you made the idea of yours into reality resulting into this as your project. Nice and to add, I have played your Campaign and it was good and just some minor problem.
So, the story looks decent and not that good because mostly we see those kinds of stories but the humor in the game makes up for it that made it interesting.
The footman hero looks fine. His abilities were not triggered but proves useful at his battle role. Though I do think you can use some bash attack sound when the footman's first skill is used rather than the Defend ability sounds which does not fit.
The terrain looks good though it lacks decors and is empty at open areas. Remember mostly in open area, it needs more decoration. Also, your terrain is flat. Use the Raise/Lower tool to make up for it.
Overall, the campaign in its early state looks good and I am looking forward for more.