I am finding all sorts of fun things in the rulebook.
Purchasing Ironclad Assault Launchers for dread does 2 things.
1) you gain stealth vs shots at <8". That's nice! Any save is better than no save!
2) you gain a blast weapon!
So, when you fire, you can use hurricane bolters + flamer + blast, or meltagun + flamer + blast, etc.