The idea of starting with limited forces and having them 'grow' onto the battlefield as the game progresses fits the theme. Cool and unique.
However, I found the rules, especially around unit deployment and how the 'ALARM!' impacts reserves, a little complicated. It took a few reads to grasp the timing and conditions, making it tough to follow clearly. Despite that, it sets up a really tense, escalating battle. Great effort on a creative mission!