The units and techs in this kind of building are:
- fishing ships
- trade cog
- gillnet
Water scout is unnecessary since the water has less terrain differences than the land. Usually, there are no high places on the water, nor are there cliffs, forests, etc. On the water you don’t need to know if the opponent’s resources are forward or backward.
You won’t spend and train a so-called water scout to scout where are fish points and the opponents’ docks. You’ll just send a fishing ship or a regular military ship to scout.
On the other hand, Water Wheelbarrow is unnecessary too.
The only reason fishing ships having to move far is that the natual fish points are too far from the docks. At the time, the natual fish will soon be given up and the traps will be used. You just need to build a new dock at the closest shore and prepare to switch to traps. When you use traps, there are just too close to the docks so the research of water wheelbarrowis may be unworthy for just a few far fish points before using traps.
The rock-paper-scissors mechanism needs to be retuned.
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Boarding ships:
Melee unit with a range of 1 and a good pierce armor.
The attack can be impacted by Forging-line.
Visually, a boarding board extends from the deck of the ship, and a soldier will stand on the boarding board to attack the opponent’s ship. -
Archer ships:
Ranged unit with a range of 4/5/5 in the Feudal/Castle/Imperial age.
The attack and the range can be impacted from Fletching-line.
Having a lower HP, but they fire multiple arrows at a time and fire fast so they can cause good damage on Boarding ships. -
Springald ships:
Trained from the Castle age.
Ranged unit with a range of 7 or 8. The attack and the range can be impacted from Siege Engineers.
Having a high pierce attack with the bolt, therfore they counter Archer ships well but may be hard to deal with a number of Boarding ships.
Costs: Boarding ships < Archer ships < Springald ships
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Demolition ships:
Trainable from the Castle age.
Once there are too many Boarding ships and Archer ships alone cannot handle it well, then it can be better solved by adding some Demo ships. Use these Demo ships to prevent the opponent’s Boarding ships from approaching easily, allowing the Archer ships to fire safely from a distance. -
Bombard ships / Dromon.
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Unique ships:
- Longships (Vikings): After having a Castle, now able to slowly train Berserks when at a shore.
- Turtle ships (Koreans): Now they are expensive, slow, strong ranged ships with a range equivalent to Springald ships and a super high melee armor, trainable from the Imperial age. Good against Boarding ships.
- Caravels (Portuguese): Now fire cannonballs, at least in visual.
- Thirisadai (Dravidians): Maybe fire bolts pretty fast rather than multiple bolts at a time to play the role of advanced version of Springald ships.
- Fire ships: Now the unique unit of Byzantines.
Do not need the siege dock.