This has potential
Try to make a money system instead of Xp, also make upgrades available and mabey some partners cuz if an area is quarintined i bet the government would be pumpin in cash. Plus the people would have money with them, so it makes more sence. By upgrades i mean different guns partners like i said, wall upgrades, more stuff like that. The game was a bit off...mabey you should make it more clear why is quarintined also! I could help with some of it if you wanted