From what i've seen that looks like a volkite cannonade on the styrix. That gun is all kinds of ridiculous and amazing, it works like a necron doomscythe ray but with a bucket of special rules on top.Also coming is a new Questoris knight (the Styrix) which has a fancy/techy looking cannon.
imperial storm troopers, painted wrong....Now, where's lord Vader?Solar Auxillia Lasrifle Section
I.... I think I am a little bit in love.
That might be a bit too much of a base/diorama for a single model for my tastes, but he does look fairly imposing as far as the actual model is concerned.