How do you make a blokade ?
... I cant fortify. Is there any way to duplicate fortify ?
You cannot fortify ships. In a city, a ship may LOOK fortified when you use the city menu "fortify" command, but it is not really getting the benefit of fortification... the trench is for looks only. At sea, you won't even have any way to get the "fortified look", since you can't issue the command in the 1st place.
According to the ADM and HF values of the battleship abnd AEGIS cruiser, they should have the same defence from any air and missle attacks. The defence*hit points*firepower of a battleship is 96 while the same for a cruiser is 48 but you multiply that by 2 to get 96. Unless the game does something different than it should you don't need to stack battleships and AEGIS cruisers together.
Your general overview is a good "guide" for comparing certain aspects of fighting units, but it is not the way Civ II resolves the battle.
I don't have time for a full math example right now, but I will sum it up by saying that when I play full games on big maps, nothing beats my navy... and the lynchpin after flight is the vet AEGIS cruiser. I won't build a non-vet. Vets rule!!
Vet AI Cruise missles will take their toll on a vet AEGIS, and in a big pile, I will have up to 3 AEGIS, to make a solid "stepping stone" for my navy to transit. But if the AI is makng vet CMs, that should be giving you huge freight bonuses... and these will far outweigh vet air units, in most circumstances.
BTW, I use lots of freight, even in war... and vet AEGIS protects them all (in their transports). I usually try to get a 100 shield city to crank one out every turn, and stop off at the Shakespeare city to swap ownership to keep Democratic happiness (I prefer, by far, a Democracy to fight a big bloody war).
Lastly, I use a destroyer (Shake) to sweep for subs, and at least one Vet BB (Shake) in a transport pile. 5 or 6 freight worth 12,000 gold and 12,000 science is just too valuable not to make & use the right Democratic navy!!
BOTTOM LINE: Use a Vet AEGIS (or Two!), not a Vet BB.
PS, You should not find the "definition" of AEGIS anwhere... it is not an actual acronym! It is a clever trick, LOL. I'm Air Force, not Navy, so maybe a Navy expert can expand, but it was originally called Advanced Surface Missile System (ASMS). ASMS was renamed to "AEGIS" in 1969... the powers that be didn't like "ASMS Cruiser"... remember, the Navy likes to PRONOUNCE things (Like "COMSUBPAC")... the rest of us in the military just usually just use the alphabet soup (like "ACM" said A-C-M, not spoken "ackam", for Advanced Cruise Missile, one of my first 1980's development assignments). BTW, the name "Aegis" literally means "shield", and is named after the mythological shield of Zeus in Homer's "Iliad" (which is an ancient Greek book).