Im not an port expert, but this is mainly based on my experiences from playing against ports.
As port you should always aim for a ff, depending on your opponents civ place your tc's defensive or not. As port you have the safest ff in the game. In age 3 you can deal with the hussar quite nicely because you can build goons. Depending on the situation most port players build culverins+cassadors+goons, and they can call minutemen from 3 different tc's. Also they have a great mameluke shipment. If the game goes on you have a constant villager stream out of 3 tc's and you will get some very nice eco.
When you survive age3 go for age4 to finish your opponent off.
SUNIL IS NUB!!!
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