Paramilitary Team Member Luis Rodrigo is a leader in his group.

A early military hybrid, Rodrigo is a bear of a man. He is flawed, though, and to compensate, he wears a mask with an oxygen concentrator as a mouthpiece. He can survive without it, but helmetless, he is rendered ineffectual in the field.

We first meet Luis Rodrigo in Book 6 of The Human-Hybrid Project, Taking the Tower.