I think this has potential. In my first game I accidentally killed off my 1 fireman in the first bombing raid so that was over pretty quick. In the second game I survived to wave 4. Two of my units got stuck together which didn't help (I think this is the 'fleeing' thing mentioned) and I thought I was doing okay but suddenly the game ended. I wasn't a fan of the monochrome visual style as it made it hard to distinguish between the different 'actors'.
There was also different squares for the building but I had no idea what each meant.
Maybe I lost because Buckingham Palace was destroyed or something?
Nice '1940 BBC voice' voice acting for the start of wave quotes!
Well done all round!