SPARTAN Green and The Possibility Wars
Earth has been invaded. Several High Lords of alien realities have established footholds upon the Earth. Each High Lord and his Darkness Device strive to drain Earth and its people of Possibility Energy. When enough has been taken Earth will perish and the end of the multi-verse begins.
Several countries and regions have been invaded, including the United States. A primitive land of lizard men, the Living Land, is spreading over the east and west coasts. The federal government has fled to Houston and set up a new capitol. With a new capitol comes the Delphi Council which has been tasked with winning this war. Their enforcement arm is SPARTAN, the Special Purpose Armed Response Tactics And Negotiations unit.