I think it’s ridiculous to propose that HK gets any of the following tags:
Sith, Scoundrel, Bounty Hunter
@DengarsDumpTruck
1) he was not a Sith, in any sense of the word. He was employed / owned by a Sith. He didn’t practice any of the teachings, follow any of the beliefs, or have any connection to the Dark Side of the Force in any way, regardless of his natural affinity / history of “Dark Side” identification.
2) he was not a contractor chasing bounties or “for hire.” He was owned, and assigned specific tasks and missions as an assassin. He was utilized as a tool, unlike IG who followed his own directives as a bounty hunter.
3) Scoundrel is just fishing for a tag because he doesn’t really fit into any others. He wasn’t an “outlaw criminal,” as a part of the smuggling underworld, mercenary work, or any other form of independent affiliation. He was a droid. Owned by a Sith. Used as tool for assassinations.