I have liked this design since it was scratchbuilt, in my mind its more of a defensive weapon than an attacking war machine, like a re-locateable defence tower - as it fits quite well with TAU architecture rather than vehicle design.
My friend and I are working on a tau superheavy
its going to be a kind of "flying saucer" design, like a giant drone, dropping down from the sky to release swarms of drones and close quarters fire.