I really love the idea here, but the theme really works against it. The chaos of most of your units being out of control at any given point is kind of frustrating, and around 50% of the time I ended up winning at random because one of my own units, or the enemy's, decided to burn the right square.
That said, when this game works it really works! Plotting out the right grass route to trap the enemy is fun and satisfying. Balancing your own safety with your aggression is really interesting! Would like to see this worked on :)