Talk:World 3/@comment-180.145.144.184-20131009114425/@comment-17677153-20131009141402

Purple nodes are there to hate you and suck away your fleet's fuel or ammo, depending on the node.

There are certain stages where your fleet composition affects the route you will be taking in a stage, but there is only one stage that requires a fleet full of destroyers, and it is 3-2. There aren't any notes up about this world in wikia yet--for now, just know that you'll always get sent north from the beginning in 3-2 if you don't have all destroyers.