http://starwars.wikia.com/wiki/Operation_Emperor%27s_Hammer

This is the case where ONE SSD did a BDZ.

I have it on very good authority that, while occasionally not outright said as "BDZ", it describes effects congruent to a BDZ that are performed by a lone ISD.

Further, Wookieepedia is not the most reliable of canon sources for Star Wars. Numerous EU books describe BDZ operations, without outright calling them BDZ. And, said EU novels are part of Star Wars canon and continuity.

Note that there's two ways to interpret the article:

1) It offers nothing on ISD Base Delta Zero capabilities.
2) Since an SSD could pull off a BDZ in four minutes, it's likely that an ISD could do the same thing, just in more time.

Well, of course an Executor-class Star Dreadnought could conduct a Base Delta Zero, that was one of their main functions under the Galactic Empire. Yeah, the terms Base Delta Zero and orbital bombardment could probably be used interchangeably, and it is not like I said one ISD couldn't. I share that sentiment, all Wookieepedia cares about is appearances and sources, with no regard for what those things do to canon. Several posts in this thread describe my feelings on the subject.

I'm not sure a starbase style upgrade system would be appropriate here;  Starbases were designed to be available early on, but can be enhanced as resources allow.

The Titans on the other hand strike me as more an end-game thing; more along the lines of a mobile super-weapon you build when you want the game to end.  It wouldn't really make sense if you could build them for cheap, but then pour upgrades into them to actually make them the super units they were supposed to be in the first place.

That said, I wouldn't mind seeing some customization options for them; however this should be more along the lines of, "Do I want the super death laser, the planetary mind control ray or the invulnerability module?"

Smells like EVE to me. Not more hotdrops!

And here I was thinking Greek Mythology. Silly me.

Well for one, the Vasari are the only ones who can do anything close to a hotdrop. For two, it's nothing like EVE, as other than the fact that "Titans are big, and can take on fleets", we know nothing about them.

We don't know if they have lots of little guns, or a few big guns, or a really big gun, or lots of big guns, or were rolled in liquid guns and then baked to a tender-brown color, or dunked in molten guns and then dried out in the sun for three days.

I wasn't thinking Greek Mythology. But then again, I was thinking more "Titan=usually a word used to described really big&powerful&deadly ships in numerous scifi franchises".

But the Greek Titans were big and powerful and deadly, so I suppose that they would fit the bill.

Which brings up an interesting question. Will there be a Space Pony Titan?

There ya go.

Doesn't look quite right. I envision a space pony titan to be, well, a giant spess poneh. That then brings poneh fureh bah steel rehn.

But it's coloration and insignia is pretty spot on.

You just... have that lying around?

Maybe Space Ponies are going to be a playable faction in a future update to Distant Stars. 

I do not understand this too. Why sometimes destroyers are classed above cruisers? For example in Conflict Freespace, largest ships were destroyer class (Lucifer)....or Babylon 5, the Omega Destroyer was larger than Hyperion Heavy Cruiser... Is it just the authors do not give a shit about these things and only us ubergeeks care, or does it have some reasonable explanation?

Destroyer sounds cooler then Cruiser.

Well, I think that some authors don't care, and some authors do and put it in, but by and large, most authors follow "Rule of Cool", because:

So it's that simple really. But of course there's also sorts of egregious errors, like IRL, a "battlecruiser" wouldn't exist in space because it'd simply be a weaker-armored battleship, and wouldn't be any "faster" or "longer-ranged" than a battleship. Which of course prompts the "why not just build a battleship?" question.

Ironically, 40K again solves the problem with battlecruisers being cheaper than battleships, and generally having weaker weapons than battleships, but rivaling said battleships for range.

In other words, a battlecruiser is a poor man's battleship, that's basically what they are anyway.

This kind of thing reminds me of how the Strident-class Star Defender got put in the same league as an Imperial-class Star Destroyer in one of the LotF books, and since it was in a book it is canon until they resolve it, while her sister class, the Viscount-class Star Defender is comparable to a Star Dreadnought like the Executor-class.