Ultimately, the type of terrain and the rules used are up to the players and should be discussed before the game begins.
Starting with the blue player, players resolve any abilities and effects that occur during Setup. Starting with the blue player, players alternate placing units with the Prepared Position keyword on the battlefield.During the Deploy in Prepared Positions step of Setup, a unit with the Prepared Position keyword may Deploy by placing the unit leader of that unit completely within allied Territory. Then the remaining miniatures in that unit are placed in Cohesion with their unit leader and within allied Territory. That unit then gains 1 Dodge token. Miniatures cannot overlap impassable terrain when they are placed using Prepared Position. 