The idea is to add a mob to the Council, 40-50 only, that is essentially a Quantum gunner that does giant spike damage to Anyone, not just Kheldians.
It wouldn't be unresistable Nictus damage, probably a combination of Energy, Toxic, and Lethal. They would use the Quantum gunner animations and the goal would be to tune them so they are a "must eliminate quickly" mob just like Sappers.