Join Date: Feb 2011
Location: Denver, Colorado
I don't find it a waste. I suppose it depends on your function and target for your death company. When I field them I take a power-weapon or two and the rest have boltguns. Usually 4 attacks on the charge with 6 to 7 death company (I also usually have a reclusiarch as well) is enough to win a combat, perhaps not utterly wipe out the squad but its enough.
And although you can't count on it, if people forget that they are relentless then they do not expect to be both rapid fired and charged.
Depends on your build - I don't think boltguns are a waste on DC, but they are definitely not a must.