I needed monsters for my story, but with each added "quirk", dragons became more and more like overgrown, but well-behaved, flying housecats with scales. And I also didn't want them to be "monsters", just cool non-human characters.
Taking a page out of Shingeki no Kyojin and Full Metal Alchemist, I settled with deformed humans with little autonomy, controlled by a single person.
Homonculi are genetically altered, artificial humans, i.e: they don't have parents, only a designer.
Mass-produced homonculi are optimized for Zerg Rush tactics. They can hibernate, have no sense of fear, and can be programed by their coordinate to execute various tasks.
In terms of capability, they are about as good at combat (aiming, carrying stuff, etc...) as, your average draftee. Their biggest strength is their increased resilience to gunshot wounds, such as fast-clotting blood.
Autonomous homonculi are supersoldiers, playing the nieche of special forces and commanders on the battlefield. They have human intelligence and complete autonomy, their loyalty and skills are thus the result of years of training. They're also biologically immortal and capable of perfect regeneration.
They usually have around 20-50 mass-produced homonculi under their command. As per law, they have unnatural hair and eyecolors to help discern them from regular humans, expect to see lots of aquamarine, blue and purple hair.
Storywise, Captain McKenna, an autonom homonculus with aquamarine hair and scarily laid-back personality, is supposed to be a more serious breach of "International Law" than mass-produced homonculi.
Now, my International Law was meant to be an extrapolation of the "spirit" of the Geneva Convention to cover new weaponry like homonculi, mindless titans, experimental internet gas, and televangelists.
However, I'm unsure if Captain McKenna would be a more dangerous weapon than the squads of mindless homonculi he controls, though non-homonculi can also be coordinates.
Based on the principles of the Geneva Suggestion, which homonculi type would be the more dangerous? Assume a near-future Earth as our setting, and also that most of Europe, Russia, Asia, and North America has the capability to create and stockpile homonculi.
I mean, autonomous homonculi are effectively slave warriors, while mass-produced homonculi only feel recoil when pulling the trigger, and if the coordinate is employed by a PMC...