Great game, playing for the new medal but noticed that some of the levels are extremely easy, i won mission 3 by just sending one squad down the middle, I've found that rushing the enemy with cheap units at the beginning of battle is the best way to way.
This needs a in-game team chat, the ability to organize and conquer the enemy is an invaluable tool for a game like this. Especially when solo adventurers are fodder for groups of 2 or more.
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It's all about luck,mate.