FAYETTEVILLE — Hunched shivering in the burned-out husk of a city bus, former Sgt. 1st Class Tina Allred readies her spear. Beside her former Specialist Joey Pulsipher threads a dart into his altlatl, a sort of sling for launching pointed projectiles. Luckily the patrol of a dozen or so warriors from the enemy tribe passes by without detecting them. As the marauders disappear into the howling snow, Allred and Pulsipher relax and return to their original goal of foraging for food.