The Adjudicator-class is the Covenant Supercruiser fyi, funny enough there was a nice model made for it that never made it in.
The Strident is going to be used as the UNSCs heavy frigate, with Shields to help out last it in combat. The Prowler's role is under lock, key and auto-turrets, so only the devs know the details to that.
I've heard stealth features in this game are impossible; Goafan saying that the best he could do is turn the model invisible and make it invulnerable.
The DAV-class IS the Missionary class. The only difference is the ability to jam missiles, and if we add that you've got yourself almost the same thing as the ONI Sloop. Not fun for asymmetrical factions to use the same thing.
For the unit requests and remodels someone else can answer these since I don't know if there are any recent plans to remodel them.
Invisible and invulnerable are how they did the cloaking systems in STA3, which isn't a bad idea. Awhile back I suggest the same thing and one of the devs replied saying that it's impossible because there are a few passive abilities that we can't see on ships like the sloop that take up all of the slots to help make the ship work correctly. That may change with the update, but the devs are being rather tight lipped, but then again loose lips vaporize ships. It will be interesting when we get Stridents however
“Listen to me, Covenant. I am Vice Admiral Preston J. Cole commanding the human flagship, Everest You claim to be the holy and glorious inheritors of the universe? I spit on your so-called holiness. You dare judge us unfit? After I have personally sent more than three hundred of your vainglorious ships to hell? After kicking your collective butts off Harvest - not once - but twice? From where I sit, we are the worthy inheritors. You think otherwise, you can come and try to prove me wrong. Is that the best you can do? Watch what one unworthy human can do!”
"How do we go?" "WE GO FEET FIRST!"