A blood spilling, bone snapping, skull crunching, viscera tearing good time. Being a newbie in many ways to the universe of 40k except for some basic knowledge, it was a harder sell - many things are left undescribed, such as weaponry, vehicles, and even basic premises, but it's to be expected when jumping into a long running franchise with decades of history, and hundreds of books.
That said, I was engaged by the martyrdom plot, which offered a nice simplistic hook to drag me into the next novel. But the real treat here, simply, was the endless pages of descriptive, gore spilling violence. The language used here is absurdly descriptive. There were one or two times where some repetitive descriptions were used, sometimes on the same or next page (the Rhino "biting into" the ground, a great description, but not when it is used in nearly the very next paragraph) and anyone looking for a story transcending the realm of pulp fiction might be disappointed by the plot, which was spread thin even over the 185 or so pages that were here. (At least as far as the Omnibus is concerned which is how I read this story.)
But let's be honest, if you are reading a 40k novel about genetically mutated space marines with guns that fire exploding shells, your expectation is likely more along the lines of a paragraph explaining how blood sprayed from the arteries of the Blood Angels' kill, and how they drank it thirstily. In the grim dark future, there is of course, only war. I paid the price of admission expecting an action movie novelization, and I got it.
I am looking forward to the next novel, to see where the story takes Rafaen, Arkio, and the insidious antagonist from Deus Encarmine. And if it has even half the brutality this book contained, I will be content.
It loses a star only because the action can only be sustained for just as long as it was without getting tiring, even for a guy who craves it when the plot is this paper thin. But what there is, was a great time, even if it felt like it could have been a bit more depthful.