Behind the Kaetif Genome Project
While the Project went about examining Kaetif, living and dead like, and humans, likewise living or dead, to try and identify the qualities that made the Kaetif such wonderful specimens, Sombra had something else in mind. As fascinating as locating the genetic code that gave bat Kaetif better hearing or dog Kaetif better smell was, there was a particular race of Kaetif that always stuck out:
The echidna. They had nothing to do with the common echidna animal, at least at first glance, but were named for the same reason: Echidna, the mother of all monsters in Greek legend, gave her name to both for obvious reasons.
The echidna were the elites of Neo-Incan society. They numbered tens of thousands at their height, true to their elite status, but the actions of the Operarius regime ensured they were culled to but a few hundred, a precious sample that Sombra was eager to preserve.
It didn't seem there was any relation; the Kaetif echidnas always seemed to have dreadlock-like protrusions for some odd reason... it was a common joke they wore an octopus on their head, since they tended to form eight large, tentacle-like dreadlocks out of smaller ones. Their fur varied, but usually was some variation of red. Their brains seemed to develop at a faster rate than any of the other Kaetif, and furthermore, once fully developed, they tended to all be of above average intellect. Their muscles seemed to have a higher density, allowing a slim echidna to deceptively have the strength of a professional wrestler with training.
Some even had a bizzare mutation of spikes protruding from parts of their body, the fist normally but other parts applicable. Some echidna developed spikes on the chests and fists alike, earning them the name of the "Lukardna." Specimens with spiked body parts were rare, but also the most exceptional in their abilities... most of them died in Operarius' experiments.
Why did the wolf, increasingly authoritarian, care so much about this race?
Because, like his siblings, he was not what he appeared to be on the outside - echidna blood ran through his veins. The echidnas had played a key role in Operarius' experiments. Countless were sacrificed to fuel the regime's research, and what was gleaned was quickly used to create the super Kaetif - Blitz, Isabel, and Sombra himself. However, they were botched. Above-average as they were, the super race of soldiers the dictator had hoped to create never came to fruition.
The President of the Federation, Sombra de Mar, was looking through files. While he wasn't the genius Isabel was... he was quite competent and could absorb most of what he read. What little was left of Operarius' data on the echidnas was found, and he was gleefully taking it in.
"This," Sombra said as he, alone in the former dictator's laboratory, where he had grown up, filled with memories joyful and tearful, "Is my purpose. If that adipose-ridden buffoon could come sp close, with me and my 'siblings'... then I surely have the potential to finish what he started. I will protect the rights of the Kaetif everywhere..."
"I will make this nation great again, just as it was before." He paced... looking at an empty tank, where specimens would be bred...
"I will prove that the Kaetif are superior, that natural selection must take its course, that humanity must evolve or face extinction..."
And he smiled.