[@ClocktowerEchos] Don't worry about the plasma, it's only radar protection and general scan protection, you can still see them through thermal scanning and visual observation, they will be especially easy to see considering they are glowing somewhat when they have plasma surrounding them after and before a warp jump. 

You are correct on the reproductive aspect, the Nexus creates them by generating it's on A.I fragments into new bodies, this can occur when new citizens are required by the Dominion to fill required jobs or when other Voltar Citizens ask the Nexus their-selves for the blessing of new children which is then bestowed upon them if accepted. 

The Voltar are certainly robotic in design and they can connect to electronics but only of their own design, the is because their chip sets are only compatible with their own technology and the technology is completely different, they could certainly use cyber warfare if they wished but that would only be simple things such as communication jamming this would require building a system that's compatible with another races electronics, they are also a fairly peaceful race, I wouldn't really worry about it, I'm not going to have them attack people and take control of their ships, I understand limitations and balancing and I understand that would just ruin the fun, think of the Voltar as a race that rather share technology and knowledge, but if they are required to defend their-selves, they will, however the Voltar are incredibly susceptible to hacking, viruses and EMP attacks, this is their weakness. 

We are literally talking billions of years, the Aztrovans may have known of the Vo' when they came to power but this would be when they were almost completely extinct so they would perhaps be nothing but a myth by that point, the war was so catastrophic that almost no trace was found, and any trace that remained was collected and used by the Voltar. 

I hope this clears things up. :) 

[@Keyguyperson] 

I'm just going to read over your sheet now! I'll give some feedback soon!