You specifically told us to create Romulans. It's as if we're having a different conversation all of a sudden.
Yes, Romulans, as in, the Green Faction. Admittedly, there are all of three possible races for Romulans, one of which is locked behind a wall, which sort of limits your choices, but I did mention the entire "Alien" thing. I then mostly waved off the details and left them up to you to decide because they weren't important.
I imagine we'll probably ultimately only gear up and play one or two characters, so that's all right I suppose
What usually happens is that you start with a character and build that up, then at some point the desire to build something new and different to fill an unrelated niche takes hold. At this point, there are two options.
1. Smart: Use one of your existing, partially developed farm toons as a platform.
2. Stupid: Uselessly buy this thing on your "main", resulting in a main character that has to tear apart its original development and retool to do this thing, and now has an entirely useless set of things it can't use anymore.
There are a lot of people who choose the Stupid option. Apparently, new science is telling me I can't talk them out of it, and that the poor are stupid and will remain stupid, so if you disappoint me, I'm just going to abandon you and let you derp your way to death. Don't disappoint me. You've been doing okay so far. That is, to say, you're doing crap, but at least you paid better attention than most of the other halfwits I've tried to teach anything to. Keep up the throughly mediocre work. EMPHASIS ON WORK.
But there are a lot of playstyles, all potentially gaining validity at some point, as well as some whimsical and flash-in-the-pan things you might give a whirl to. Having some partly built infrastructure is a huge step. If you didn't have this farm-based infrastructure in place, where you will passively and slowly maximize your reps and shit using MAXEFFICIENCY methods that I give you which makes this practical without much effort, you would be unable to deploy yourself to this new direction, and would be thus tempted to do something stupid, like that idiot Mito. No, you don't know who that is. Just know that this is an idiot who hasn't done as I told him to. Don't be a Mito. Not that I guess you can resist it, if you're going to, so I guess there's little point in admonishing you. Either you will, or you won't. If you do, I'll be like this.
but at this point my eventual Cardassian character will be starting from 0 on reputation and everything else weeks/months after I started playing the game.
Normal. And not really as bad as it sounds. You see, the first characters to finish the rep unlock an ability called "Sponsorship". You're probably aware of all this already, so I won't belabor it further, but it makes a HUGE difference in how quickly subsequent pylons get up and running.
And yeah, I've noticed that this game is heavily biased toward Tac, because dealing lots and lots of damage is the only thing that seems to matter (and it doesn't help that NPCs are at least partly immune to Subnucleonic Beam et al.).
Well, NPCs aren't specifically IMMUNE to it, but it has no effect on them because it attacks a thing that they don't have: SNB removes a target's buffs, and most NPCs don't have any and are tough purely because they are giant flying bricks of HP, against which there is no shortcut or way to weaken them beyond MOAR DPSes.
There's a few Really Fucking Annoying ability-buffs they DO use, though, and not having someone who can deploy this can leave you at a bit of an unpleasant impasse, so Sci isn't a total loss in space.
SpaceEng, on the other hand, is mostly hopeless.
Ground combat is an exception, since Eng has excellent protective shields and utility and Sci has nice debuffs and heals, the absence of which can be clearly felt during Elite ground missions where everyone's a Tac officer.
I find that Sci is hilarious and practically rules the roost on Ground, if not in raw damage, certainly the ability to set the map on fire and fling your enemies helplessly like ragdolls. Eng is in a less strong position: Being very ponderous and underpowered when forced to move quickly, Eng fails to fit in well in most roles. You can deal a lot of damage to stationary and predictable targets, but most missions involve GO GO GO, so this is of little help. When you're needed, you're NEEDED, though. GroundEng is also very strong in the farming department. While your damage is not particularly high, it IS very low effort: You deploy a bunch of turrets, pets, and mines, and your enemies die to them. A bit slowly, but without much personal exertion on your part.