Loadout B is what I run for my Khorne army. Doesn't disappoint!
My experiences have been a bit different.
I find the mixed role HB to be very lacking. Unlike our Loyalist counterparts who can pay a nominal price increase to get a Venerable, who has a 2+ BS, we are stuck at a 3+ base.
Where they can move and still shoot on 3s, we are reduced to 4s when moving. On single shot guns like a Multi-melta, missing 50% of the time is pretty bad.
The two builds I've had far better success with are the pure shooty (Twin Las/Missile Launcher) or full CC (Helbrute Fist/Scourge). These builds also make the best use of the Crazed ability, since on that 6 you shoot or pile in and do a full set of attacks, the most "free" damage you can get the better.
And if you want to punch things you'll defintely want the +1 attack on the fist for dual CC weapons. 5 Fist attacks and 3 Scourge is amazing!
You really need to specialize the Brutes to get the most out of them IMO.
Thanks for your inputs, guys!
I went with the Helbrute Fist and Power Scourge like you suggest. Really looking forward to trying him out on the tabletop!
Trying is the first step towards failure.