Another nitpick is why Daryl walking using what appears to be field points, which are, from what I can tell, practice tips for his bolts. Shouldn't he be using broadheads since those are the standard tips used for hunting? Granted that I'm sure that field points are more than good enough for walkers and easier to pull out but if everything happened as quick as it did shouldn't he have had mostly broadheads on his bolts?
The broadheads would be destroyed a lot more quickly ripping them out of skulls. The field points are much more practical.