The krusading berserker kop has "special powers" that this regulation gives him.
Other than that, they're both bullies hiding behind a black uniform, weapons of destruction, an organization and the fury they unleash upon people and property.
Their fear and loathing of the "enemy" is the fuel for their violence; the target of their rage shifts in accordance with their allegiances.
Neither is necessarily aligned with a political orientation; they're opportunists, pragmatists and followers.
They're killer ants.