Why the lack of underwater content?

I'm sure the commandos would love underwater levels with their 100 lb cannons weighing them down....unless they could use them as jet-ski's

And where do you get that from?
Please provide a source.
Or are you just pulling it out of your bee-hind as usual?

How about scrolling up in the thread if you're so curious.
Jeez, doesn't anybody ever read these things?

How about scrolling up in the thread if you're so curious.
Jeez, doesn't anybody ever read these things?

Well actually I did read the whole thread and I got to admit that I also did not notice any proof for Ord Mantel to be designed with underwater content in mind. Ord Mantel got some open water, but Alderaan got that as well. And you cannot swim anywhere on Ord Mantel, the open water areas are just working as the same kind of boundary as walls and mountains do on other maps.

So no, I cannot see how Ord Mantel should be any indication for being designed with some water content in mind.

I can't believe some of the things I'm reading here. "Everyone hates underwater content", are you people for real?
That's like saying everyone hates racing games, or platforming, or whatever other feature/genre you can think of.
Some racing games suck, others are fantastic. Same applies to the platforming aspects of a game; it's all in the execution. Just because you didn't like GW2's underwater aspect—which, personally, I quite enjoyed—doesn't mean you wouldn't like a similar feature in SWTOR, provided its design was ingenious enough to cater to your personal tastes.

But anyway, onto the point: SWTOR was obviously released in a germinative state, as most of you know. However, its developers were smart enough to leave a foundation in place that could allow them to add certain elements—or rather, systems—to the game post-release. These can be found all over the place (I'm surprised more players haven't picked up on them), and include systems as potentially complex as vehicle hit points, weather cycles, counter-spying missions (Last Emperor Flashpoint), pazaak, swoop races, entertainment careers, player housing and yes, water-based shenanigans.

"But wait, what are you talking about? I've never seen anything in the game that suggests the potential inclusion of any water-based systems! Troll."

Well then, you aren't looking hard enough. Why don't you go ahead and go back to Ord Mantell. Do the class-quests there with either a Smuggler or a Trooper and count the number of times NPCs expressly state, loud and clear, the necessity of your having to swim across to Manett Point because the bridge is out. There's even a reference to the use of a hydro-speeder on the Trooper side. But then, when you get there, the water barely goes above knee length.

This vast body of water NPCs keep alluding to was obviously not meant to remain in its current puddle-like state indefinitely, and the reason why it was put in place in the first place was so that it might allow for the future inclusion of swimming/hydrospeeder features. This is why I keep going on about retroactive changes, it's essential that they preserve the original creators' vision: mostly because it seemed a heck of a lot cooler than anything we've gotten thus far.

I'm no Star Wars Science expert but how do lightsabers, blasters, missles, flamethrowers and force lightning work underwater?