So basically I have to play each level over four or five times until all the air attacks coincide with where we happen to have AA guns? It's not possible to build defenses if for every tower I build I have to build an AA tower since I have no idea where all the attacks with be concentrated. 1/5 until that's fixed.
Great game! It was fun to play with an easy to understand learning curve - only one problem, a five second fanfare is not enough for an hour long game. 5/5 still though
So every level I just spam arrows, updrage for half an hour and than let lose a wave of paladins and crossbowmen. Just so that the A.I. can spam walking bombs.