These would be very good include ships crews, cargo and squads in C 3 game as fallows Ships crews and cargo Boat = 2 fishers, 200 fishes cargo Barge = 2 rafters, 1000 resources cargo or 80 units Merchant vessel = 4 crewmen sailors, 3000 resources cargo, herring buss 2000 fish cargo Transport vessel = 4 crewmen sailors, 240 units and 1000 resources cargo 17th century warships Yacht = 4 crewmen Galley = 12 crewmen, 12 musketeers Frigate = 12 crewmen, 12 musketeers, 500 resources cargo Xebec = 12 crewmen, 12 melee infantry, 500 resources cargo Galleass = 24 crewmen, 12 musketeers Battleship = 30 crewmen, 12 musketeers 18th century warships Cutter = 4 crewmen Ketch = 10 crewmen Sloop of war = 12 crewmen Frigate = 20 crewmen, 12 musketeers, 1000 cargo Basic ship of the line = 30 crewmen, 12 musketeers Common ship of the line = 40 crewmen, 24 musketeers Large ship of the line = 60 crewmen, 24 musketeers Ship crewmen create in port represent sailors, gunners and officers. All vessels before sailing at sea should take on board some crewmen. Musketeers and other infantrymen could represent marines. They could take part in virtual boarding and small landing actions. Ships could suffer losses in crewmen and marines during sea battles. Heavy cannon fire can inflict serious damage, wreak and sink destroyed ships. Bigger ship sometimes could capture smaller ship during virtual boarding action. Captured ship could be hauled to port and repaired, then ship can take on board new crew. Vessels with crewmen on board can sailing at see. Every warship bigger than yacht and cutter needs commissioned captain on board. Commodore with Adjutant boarded on chosen warship can create warship team squad. Vice or Rear Admiral with Adjutant boarded on chosen battleship can create ship squadron. Admiral and Adjutant boarded on chosen battleship, Vice and Rear Admiral boarded on another two ships create fleet. Ship squads Team = 2 the same type of ships, Commodore and Adjutant on one ship Convoy = 2 or more transport or merchant vessels, plus escort warship team Squadron = 3 the same type of warships, one ship require Rear or Vice Admiral and 2 or 3 Adjutants Fleet = 9 battleships or ships of the line, three ships require Admiral, Vice or Rear Admirals with Adjutants Fleet include Vice Admiral squadron, Admiral squadron and Rear Admiral squadron. Boat team = 2 boats can fishing more fishes, they do not need officers I believe this is not had for skilled developers to implement such ship system in C 3 game.