Avoid Australia gentlemen

Ok so I went to Australia to see what it looked like post war and since the rebels wanted me to retrieve something there and, there's no combine at all but smth ain't right here, I've been wandering around and I keep hearing this, growling noise from alot of places at the same time and it's like I don't see what's causing it but these buildings look pretty abandoned and run down, there's also alot of bodies that, seem like they are still semi fresh like they just died a few days or weeks ago but, until I see something rlly bad, if you go there for any reason, beware, I'm thinking we could have more problems than simple headcrab zombies here