Space Marines Desolation Squad

While your Brutalis Dreadnought is having the time of their life in melee combat, some long-range fire support is just the ticket to keep it from being overwhelmed. 

The Desolation Squad is the final word in man-portable missile-flinging firepower, able to lay down a barrage of high explosives at impressive range while sitting squarely behind the safety of some good cover. They even have a choice between superfrag or superkrak missiles, so you can pick whatever’s best against the unfortunate subject of your ire.