Hmm, I think this could be expanded further for sure. There wasn't much visual or feedback difference from the units to feel like the decisions made at the beginning really mattered much, so it felt more like a random guess of how many units you put around, and not sure where you put them had any influence on the game either. In otherwords, feedback being unclear = makes it feel like strategy to use is unclear. So most of the time, just sat there looking at the game play itself. I think it could be something pretty fun with more time. Either way, good job for making this in such a short time!