Very nice, strategy oriented game! One of the more diverse shooters I've seen.
Though adding a sandbox to test different ideas would make it even better.
Well....after a few hours of trying to get the last badge I realized you can upgrade the paddle...
Just for all those who didn't see it as well, it is available!
A good way to train some of your troops is to go to find the map (close to start) that has a ghost and a castle. If you put 4 swordsmen and 2 healers in the castle while standing out of distance, the ghost will summon constant exp for the warriors, and the healers will get lots of experience from healing.