The Plasma-races (Gorn, Romulan, ISC) never developed drones
On ADB's own website, you can download the rules and SSDs for the SFB Sub-Light Game, which takes place during the fabled Earth-Romulan War mentioned in "Balance of Terror." The Romulan sub-light Warbird, Warhawk DD, and Snipe FF all have missiles, which are sub-light drones, so...
Also, rockets/missiles would, I think, be part of the early spaceflight development of any race.
the SFU* Plasma-races were never anywhere near the Hydrans
True, but the Feds have drones, and sometimes I like to play "what-if"-type scenarios, like a Fed-Kzinti or Fed-Klingon alliance against the Romulans, etc.
Then again, the Vuldar never existed, and suddenly they were there the entire time.
And the Federation would never have gunboats. And the Tholians' pursuers (Seltorians) would never show up. And only the Klingons would ever have a battleship. And Oceania has always been at war with East Asia. One's faith in the Fearless Leaders is best served by a short memory.
I might be a slightly disgruntled (and ripped off) former ADB fan.
I'm loving Starmada SFU! It lets me play bigger scenarios with more ships than I ever dared with FC/SFB, and I find the game mechanics superior. I love the way phasers work, for example - ph-1 and ph-2 are supposed to be the same same emitter, but ph-2 has an inferior targeting system. In FC/SFB, even when ph-2s hit at close range, they do much less damage than ph-1. In Starmada SFU, ph-2s have less range, but damage is the same as ph-1. That makes more sense to me based on the in-universe explanation of the difference between the two. In FC/SFB, I sometimes didn't even bother to use my ph-3s, as they were pitifully weak, but in Starmada SFU I use them at close range to great effect (Gatlings are going to be BRUTAL in Starmada!)