99.9999999% of the time, port gets taken, and captured CVs get driven out 5000 miles to be added as some dweeb's bathtub toy collection rendering the port and cv "useless". Most of the time, this strategy is used mostly when people are not as much online which is kind of gamey.
I propose thatif the port and CV belongs to country A, Country B captures the port, sinks the cv they get the CV.
Country A then attacks that port and if recaptured, propose a "rebuild" time that they get a CV for that port if held onto for say 45 mins without sinking CV, 10 mins (like now) if they do sink it.
Country B still has a "ghost ship", that is still a functioning platform to use for attack if they choose to, but if that gets sunk, it does not respawn.
Lets keep things interesting here, would make for some nice defense and offense to capture and recapture ports. Too many times if the freindly country has the CV being brought out too far to be sunk, noone wants to defend that port anyways.