Bold to take civ in a new direction, but I have doubts about the choices they made.
One swordsman per iron resource is stupid. Now if they limited the number of swordsman produced at the same time, that might have made some sense, but not this.
This is going to make resources trivial. Either there will be alot of them on the map making it unimportant if you miss one, or there will be very few advanced units in the game, making the techs worthless.