I don't believe for one second that half the camp ate a rat.
For starters, those rats carry diseases, and secondly, after Gino had apparently filleted the rat was cooked but Kim showed us a chicken bone.
Bones????? In a rat??????????
Yeah, I think they're getting food delivered. And I also don't think for one second they sleep in that camp all night. I bet they have their own private caravan parked 'on site.'
We don't know, because there isn't any 24/7 live coverage.