I gotta wonder if anyone's ever made a Vasudan Mjolnir equivalent. (I did a search and found nothing.)
Actually, it probably wouldn't happen that way in canon, since Zods generally don't like using unmanned sentries to begin with.
How's about this then. A light, fast, easily redeployable ship, slightly bigger than Mjolnir size, and with a BVas battery (or perhaps MVas) on the front. A Q-ship. (A couple turrets to defend it, too -- maybe 5 turets total, including the beam, so it's not defenseless, but not very well-armed either.)
It'd be able to provide the same role as the Mjolnir if needed, whilst adding the "honorable combat" element the Vasudans seem to prefer, and also being more tactically flexible, providing a little extra anticap firepower to a Battlegroup.
Hmm... (if only I had some sort of modeling skill.)
