I have just recently introduced a friend to this game and he was talking to me about how the matces can be unfair because some of the players have air transports and some dont. i also have an issue with transports costing above 500, 2 times the cost of sea transports. As far as i can tell air transports win in 1 speed and manuverability and sea transports win in cost and load which seem fair. now as it does still seem unfair to those who cant use transports aka for those who do not win games, i sudgesst the solution that wee simply change the upgrade that unlocks transports to one that lowers the price for transports. this would mean that everyone could use transports just some at a lower cost.