Following a (for me) monumental texturing and modelling excersize, I've managed to produce a finished version of the Vaygr Artillery Cruiser.
The ship is a little larger than the destroyer and costs a little more to build however posesses only a minimal armor upgrade. The tradeoff is it's incredible range.
Armed with an advanced laser battery capable of firing far more rapidly than coparable Vaygr weapons and at extreme ranges, anything caught in the hail of bolts is likely to take a fair amount of damage - or be utterly obliterated.
To back this weapon system up, the Artillery Cruiser also carries a battery of five long range missile tubes. The missiles fired (see lower pictures) will discard their booster section when nearing their target, releasing an incredibly maneuverable and fast warhead.
Edit: The upside down badge has been fixed.
Edit2: just realized the missile tubes aren't visible on any of the screenshots. They're along the top of the ship, in front of the bridge.