Fantastic game... there's only one complaint I have, and that is that the enemies are able to shoot through boxes and things when you are not... very annoying
This is a very unique game, lots of fun. I found that all that is necessary for winning is to upgrade the second guy you start with, and just constantly send out that same guy over and over in the same line. It worked for almost every battle.
It would also (in my opinion) make that game better if you lost the attacking territory when you lost a battle