Like a lot of the units on my list, certain specialty units won't get my consideration because I've found situations where they are VERY important. Most of my games require very few Pikemen, but in the occasional game where I'm about to face down a serious stack of knights, I LOVE the pikeman. Same idea for X-bows and anti-tank. When you need them, YOU NEED THEM. It's why I voted Submarine, although I now know about a situation where I could see NEEDING them. It's also why I'd consider Cuirassiers or Knights for my vote. I find it pretty rare for me to actually NEED either of those two units to accomplish a goal. I generally build more of them than either pikes or x-bows, but that doesn't make them more important.
I think that he's referring to using missiles to do the pre damage. I've started stockpiling these in one fort to be ready to send to the nearest friendly port to a sub. Gotta love those missiles...even if they fly sideways and don't make an explosion...
I don't think so. If I remember correctly, the original post was about the 80% withdraw chance as a useful way to make a dent in destroyers. For this to work, you need to then hide the severely damaged subs under unharmed surface ships, which one would assume are also destroyers. So the strategy is to build 24 strength subs, give them flanking II, sail them in packs with destroyers (therefore slowing down the destroyers to Sub speed), attack the enemy destroyers with the flanking subs and then finish them off with your own destroyers. I guess the next move would be to sail all of your terribly damaged subs back to a port for repairs and then do it again. Like I was trying to say, it sure seems like you'd be a lot better off building a couple aircraft carriers and attacking with fighters. Give one ship in the stack the medic promotion and you'll be able to repair your fighters out at sea, or you can even send the damaged ones back to shore and deploy fresh ones while only losing a single turn.
You can't do that with subs, and you can't reload your subs with missiles in the middle of the ocean.
As far as I'm concerned, the ordinary sub is almost worthless as a ship versus ship* weapon, and there's really no reason why that should be the case.
* I have been schooled on what they
are good for, so until I start fighting wars with tactical nukes, I will continue to think the sub is just about the least important unit for me.