Lou

"Louis is rumoured to be one of the oldest living people in The Zoo. It is said that he lost his natural vision and voice when exposed to the chemicals of the war, and has since had his face and throat replaced with synthetic components. Always an early- investor in technology, before the war he possessed lung augmentations which later allowed him to safely inhale the toxic gas, but exposure of his throat to the gas burned the flesh away.""Lou was obviously a Tango; the top of his face was covered by a permanent mask, obscuring his eyes (if they still existed) and replacing them with tech. The eyes were now camera, with wide lenses of a dark blue hue, independently moving, much like a chameleon’s . Another prosthetic began under his chin, and descended down the front of his neck, replacing the windpipe, and disappeared behind his collarbone."He has the ability to expel smoke/gases from his mouth/throat augmentation.

Combat Style
Lou favours a stealthy approach to hostile encounters. Rarely engaging in close-quarter combat he instead chooses to remain undetected, which is aided by his cybernetics and lightweight build. His mechanical eyes aid movement through darkness, while his respiratory prosthesis allows him to move quickly. In a firefight, he has been known to fire a silenced pistol, or take on a support role by deploying smoke.

Trivia

 * It is suggested that Lou was previously a keen sportsman, and played basketball before the apocalypse. This would explain his adoption of prosthetic lungs in the time before the war.
 * PXE, Tilley, and Lou represent the states of matter of solid, liquid and gas respectively.