Background story

Many dogs were experimented on because people believed if they mutated them or made them hybrids that they could use them for war and some were experimented on because they had a sickness they called chromo darkness disease which made the animals unstable and dangerous. As they experimented little did they know they were making monsters and soon the dogs fought and destroyed humans making them go.. extinct. The world changed and grew dark and gloomy as the dogs infected others.. some survived yet some.. perished or got infected.. The disease does not kill but it makes them highly unstable and dangerous. Some were mutant and pass it on to their pups .. The world grew darker and the population world.. And to this day Gray Skies loom over them as the sickness spreads and so does the mutations... Can you live?