funny game, very hard if you don't change tactic on almost each level. 3 basics technincs: 1) defense(choosing appropriate guns) 2) attak(upgrading asap your vessels 3) contamination, just grow in numberhas you capture enemy ships.
3.4--> build 4 basic tower then 3-4 supply dock, focus on quantity. build them around your base so they will be targeted first. then just grow your army by capturing enemy's vessels and building supply. that should be all
ok, solucion for trial map 5:
unit :
dragon rider + black knight +frost giant + mermaid + witch + centaur archer
magic :
heal + invicible + hercule strengh + comet shoot
hero lvl 30
wait for everyone and attack incoming enemy with hero. kill lamikaze with comet.
move all ur trop and attak when they are all together. use invicible second before attaquing, and hercule when start hiting castle. after that, wait and prey for the survival of your melee troup. when one respwn, bring him to the front. if ur long range units die...restart, u fail.
good luck
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