that tank mission is ridiculous...u cant spawn bazooka teams fast enough...and even then the tank accuracy is bs...the moment they tank sees them its over...my bazooka cant even get a shot off =/ either cut the cost of bazookas or have them spawn faster...or make the tank 1 shot kill with them...cause its pathetic..
my strategy is upgrade ur infantry barracks and tower as much as u can from the start to get pally full early in the game then while u build up; ur mana just use arrows then upgrade then mass paladins, works everytime for me right now