Patch v1.04 introduced specific tweaks to how the AI evaluates the necessity of forming these convoys. For the player, this necessitates a deeper understanding of the "Hex" grid. You must build "Trap" facilities and "Fortresses" on key chokepoints. The update refined the durability and placement logic of these structures, turning the map into a puzzle. Do you build a "Stone Thrower" to harass passing enemies, or a "Fort" to block a mountain pass? The v1.04 balance makes these choices starker, punishing those who neglect defensive infrastructure.