Aleph, the AI, does not use actual people to fight its battles; it instead uses sophisticated artificial constructs that appear human, outfitted with a sliver of its own personality and programming. This Myrmidon's brain can be saved and downloaded into new host bodies over and over again, creating eternal warriors. This one is armed with a Boarding Shotgun, but as long as you are clear with your opponent before the game starts, it can "count as" any weapon you need it to be. Most people are pretty cool with stuff like that in Infinity.
The black parts of these Steel Phalanx models are naturally based with Black, then highlighted with VMC 166 Dark Grey, 160 Neutral Grey, 155 Light Grey, and White. I will mix shades in-between colors as needed for a smooth transition.