The story line is developing way to many holes.
Just a few off te top of my head:
Wife angily confronts ex-lover tells him to stay away from her son. Next episode ex lover says "who is going to help me gut some fish?" kid jumps from his mother arms to help and mother proudly smiles and he lovingly rubs the kids head. Did I miss something?
These people go back to atlanta for a bag of guns? It's altanta, there are probably gun stores on every block.
The sheriff give his wife the excuse that he has to go back to the city to get the radio to warn the father and child we meet in the first episode via police radio. They (father and son)were in a car, Im sure they found out already that Altanta is overrun and if they didn't would he have already used the radio to warn them? He just forgot about this.
Why go back to save the handcuffed guy?
The whole vatos at the hospital thing was crazy, in real life most of these people would not visit their grandparents on a normal day, much less a zombie apocalypse.
Being in medicine, I would think that the reason for the head trauma is to damage the brain stem and hypothalamus, I dont think a cross bow could do the job unless perfectly shot, almost impossible.
Wouldnt the camp put up a warning device like strings around the camp with cans to make noise if anyone came in.
I could go on but I expected more from the writers at AMC after watch Breaking Bad.