SETTING: Desert area outside of a Reptilian city. 
DANGERS: Reptilians, firearms, explosions, dehydration, sandworms, robotic machines, and possible war between several factions. 
DIFFICULTY: (Chance of Survival 5%) - There may be some hope but probably not. 

SETTING: Uncharted jungle. 
DANGERS: Carnivorous wildlife, breeding plants, aggressive creatures, harsh environment, and large beast in heat. 
DIFFICULTY: (Chance of Survival 3%) - Not too hard for Republic soldier, almost impossible for a lost girl. 

SETTING: Toxic swamp with some areas of eco-sanctuaries. 
DANGERS: Carnivorous wildlife, breeding plants, aggressive creatures, harsh environment, acidic surroundings, poisonous vegetation, large beast in heat, and violent Reptilian tribes. 
DIFFICULTY: HARD (Chance of Survival 1%) - She will either be in one place lost and afraid or in several places in several pieces. 

SETTING: Ruined city surrounded by a radiated wasteland. 
DANGERS: Mutated creatures, massive monsters, carnivorous wildlife, harsh environment, enraged large beast in heat, violent Reptilian raiders, irradiated areas, and well just about everything wants to get her to either enslave, torture, rape, impregnate, eat, or kill her.... or all of the above. 
DIFFICULTY: IMPOSSIBLE (Chance of Survival 0%) All she can do is run and hide while finding scraps to survive off of. There is no way to escape; survive as long as possible. She is nothing more than a lamb ready to be thrown into an industrial meat grinder.