Brotherhood... What, Hardboyz Now?

So here's the Brotherhood... but I no sooner finish than I'm back at it.  This army is fun, but it doesn't have the necessary streamlining to compete at the highest levels.  I need more options!  My plan is to fill out the Grey Hunters to full 10-strong squads, then add more!  More mech, more Troops, Thunder Wolves, and so on.

Hard Boyz is around the corner - I've got 500 more points to fill, minimum.