Rogue Trooper: Future War — Gerry Finley-Day

On Nu-Earth, a planet so poisoned with chemical weapons that everyone must wear breathing apparatus to survive, the Norts and the Southers are waging a seemingly endless war. But they tell tales of a blue-skinned man who needs no respirator; a man with a talking helmet, backpack and gun; a man who knows no alliegance but to his own mission. The last survivor of the massacred Genetic Infantrymen (G.I.s).

The Rogue Trooper...