Production
When choosing the units you build in your cities, keep in mind that only land units and ferries can actively contribute to your conquering new cities. All other units are only for exploration or fighting enemies.NavyIn most cases it is useful to start building a ferry right at the beginning of the game. It is not unusual that at least one of your armies has explored its whole island when the ferry is finished.
It may also be an advantage to build an aircraft at the beginning of the game, since it will help you to located neutral cities so that your land units can move towards them directly. On the other hand, a great number of land units is needed in the beginning too. The decision for or against building aircraft is probably a question of personal preference.
Select the city that is to produce a certain unit type carefully: Fast ships and aircraft can be well built on islands that are a bit further away from your target areas; land units need to be brought to the scene of the battle with ferries or over roads.
In a game were nobody starts building Frigates or Battleships probably nobody will miss those units which are more or less useless by themselves. But if one players starts buildung up a strong navy, he can effectively block enemy ferries, so that the other players are forced to build navy units themselves to protect their ferries.Playing against the computer
Computer players are programmed to play relatively straightforward, but they lack the capability to consider strategy. This is your advantage. Attack the computer player massively at selected points and try to disturb his defence by fake attacks at other places.BackYou also have some technical advantages over a computer player: Computer players cannot handle mineboats, and they don't build navy units other than ferries. Computer players don't repair their units, either.
This is your chance: Repair your damaged units and build up a strong navy to block the enemies ferries.
On the other hand, computer players tend to build large numbers of tanks, which makes it hard to beat them on an island that has been in their possession for a while.