best tactic ,to win all levels.
1:build a wood wall in the way of the attackers,best line is also a seal for the camp.
2:buy the redcoats(british),they have long range and high damage.
3:save 2000 gold to unlock the greenjackets,they have fast firerate ,super high damage,and the longest range of all the units.
4:upgrade all of the redcoats to greenjackets.
5:build more defense lines(3 lines is enough to beat any level) build barricades if you want.
6:press the speed button for faster speed.
7:WIN...
dont let it be lost ,it is the best tactic for winning ANY level.
well,that took me 20 min. but still awesome game,next one should be longer more upgrades,more units(also i used only strong+armored specials) and more levels ... 5/5