P.S. I read about the extra slot in one of the reviews of this game. The editor himself described his tactics there. He used sea wolves as his only melee unit. There were also some nuances with magic, but I don't remember exactly.
Bow down and hear our cry,
Our earthly rulers falter,
Our people drift and die,
The walls of gold entomb us,
The swords of scorn divide,
Take not thy thunder from us,
Take away our pride.
G.K. Chesterton: English Hymnal