When I installed VOON, joined the chat, and then enabled the audio, my microphone started enabled. I am guessing that is what happened to most other users too. Things like this are probably what need to be addressed in VOON.
It is a ship the previous developers came up with called the Excalibur class (dunno if Cryptic is still using that name). The 'peace sign' ships in the trailer seem to be of this class, although with a different saucer section.