Alright, so I've tested out the Vass ships in missions and they definitely have to stay close to each other and swarm the enemy.
They simply aren't strong enough to strike it out on their own.
The main weapons of each ship (except both cruiser-sized ships) are at the least, pretty lacklustre. I found it hard to get through the shield of even a Condor-Class Carrier with the Schiavona (even using the kinetic cannons and timestop), while the Makhaira has serious survivability problems. It's flux goes out of the window using the primary, and it merely brushes most ships and sparkles them clean instead of breaking them.
Mabye it needs an EMP effect or something. I mean, it's purple, so it's gotta hurt a bit more and do some disruption, right?
The Zhanmadao and Curtana are alright to say the most of them. The Zhanmadao deals the most damage out of all the Vass ships, solely due to the beams and missiles (the fast, frontal firing ones)
The main problem with the Vass is how much flux output they have at all times.
Zhanmadao's become evident that the flux build up monstrously quick and cannot be sustained through battle, while it is somewhat the 3rd most energy consuming ship.
Schiavona is the 2nd most flux consuming ship, and given the lacklustre survivability of all Vass ships, this becomes a problem. Alas, the ability is exceptionally handy with the thruster hullmod, just...make sure to activate the ability when you're NOT under imminent danger to ensure maximum survivability. As for the main gun? Needs a tad bit more damage for the enemy to really feel it. Not over 100+ more damage, 25 - 75+ more damage should be ok. Mabye even add 5 - 10 EMP damage for a very minute disabling effect, doesn't even have to arc, since the weapon's rounds split into three.
The most flux consuming ship however is a very dirty offender. The Makhaira dishes out little damage compared to it's flux consumption, as I have tried multiple times in attempting to hit all of it's shots, only to find I have overloaded (even with max caps) because the flux builds up so dangerously quickly and the ships under attack have barely taken enough damage for the gun to be a threat.
Not to forget that the armor/hulls of the ships cannot afford to take hits, but these are very high tech ships, so I guess they've got an excuse for fragile armor/hulls.
As for the alternate versions, take as much time as you need. We can wait (albeit I do not know how long. Just don't make the ships too powerful, haha).