I am the designer of this AoS expansion. It may seem strange to rate a game you have designed yourself, but I chose to do so nevertheless. This rating reflects my opinion of the game as a game-player. It is not intended to boost the rating of the game, and in fact, I do not rate all my game designs highly.
This 2/3-player map changes the game considerably. Furthermore, it's not an easy map because of the lack of cities and the importance of mining (urbanization). Added bonus to me is the location (Siberia), which I have been interested in for a long time. Probably partly for that reason it is one of my favorite maps.
Although the map is playable with 2 and 3, I think it is better with 2.