Haven – "Everything is mixed up, truth and falsehood" [Campaign 3 – Mission 2]

If you play as a Barbarian, the main focus should be on speed. You need to quickly circle the map in a semicircle, capturing the two starting Castles, then the lower left one, and then the upper one. There, you can upgrade to Tier 5 units and both Castles are well-developed. If you let Edward and Lady Cordelia gain momentum, you might as well restart the game...