Awesome game, but I am kind of irked by the AI of the turrets and barracks units. It would be awesome if you could select a place for the Bomb Turrets to have priority over (such as a smaller circle within the preset range), rather than just continously attacking the farthest-down-the-path. single unit instead of the big, juicy clumps of Goblins. I stopped using them because of this. Also, it's too damn hard to stack your barracks units so that they attack at the same time; you need to manually set the rally point EVERY TIME a new unit pack comes if you want to be the most effecient with your forces. Some sort of grid system would probably fix this.
Anyways, great game!