Perhaps they lack the subtlety of other groups, but the Candles of God have no desire to be subtle. Perhaps they do not keep their secrets very well, but the Candles of God want their voices to be heard. Perhaps they are careless about who they kill, but there shall be no innocent bystanders when the fires of hell consume the unrighteous.
Most large mammals, such as elephants, rhinos, and their modern ilk are ill-suited for domestication, but that doesnt exclude their use as engines of war. Rather than raise and train the Mammoth from birth, Mammoth Handlers instead capture the wild Mammoths at a young to juvenile age and train them for war. These animals are draped in armor and are unleashed as living war machines against the foes of the Mammoth Tribe.