With your maps, I always the feelings to write the same things in the reviews. I really suggest you to take more time in your work, especially about the instructions, or the story. I played on this map against a Marshal, giving him 40 000 Gold.
The problem here, like on maps like "Rocky Desert of Paav" comes from the lack of space. It's impossible for any IA to create his complete castle. The castles are indeed too close from the end of the map, and the map is too small for IA like Nizar, or Wolf. The game is clearly a mangonel war, but there's isnt enough place. Even for a Multiplayer game, I think a map like that is quite embarrassing. We can easily burn the enemy with a fire ballista, and the Player who build the first a round tower with crossbows can kill everybody on the enemy keep, so the game is surely going to be finished quickly. Otherwise, the map is full of resources, which are very close (not really surprising ^^) to the keep, so the Player can easily develop his castle (in about two years, I've about 130 peasants).
The map is based on a 1 vs 1 fight, a fight which is very close. I think it's a skirmish designed for the MultiPlayer, because, at the left, there's resources of iron, the stone being at the right. So, we must choose before playing. Otherwise, the fact that the two camps are quit eclose to each other is a problem for that. Indeed, we can easily produce iron if we're predestined for stone, and it's quite easily to burn the enemy. So, the "Playability" problem is the same in the "Balance". Here again, the two keeps are very too close from each other.
What I like in this map is the separation stone/iron. Otherwise, the problem comes from the proximity of the keep. So, the idea is good, but the application is disappointing.
Map Design: 3.5
A design acceptable, but not extraordinary. But it's quite difficult to make a good design with a so small map.
As Hitman remarked it, there's nothing. We can't give zero, that's a luck for the rate.
Like your other maps, this map needs some work to be better !