This looks mint.
@Darth Canoli, what score would you give it currently?
It's better than Maiden Tactics (interesting base capture mechanism but it gets tiring because of it), even better than Sigma Finite Dungeon which I really liked (but it's too short).
80-90% would be my rating, I might be a bit lenient because of the RPGMaker engine but it's amazing what they did with it.
The thing I dislike the most is how slow the healing animation is outside of combat (4/5 seconds).
Play on hard, depending on how well you manage your team (and your luck with items and recruits), the difficulty declines between each threshold (enemy gets new units = new threshold)