Something that both the Walking Dead and today's movies share in common is infinite ammo. You could go into almost any shooting sequence and pop shots with out even reloading. This small detail gave me an idea for season 2.
Perhaps in season 2 we can scavenge for bullets. They can be practically hidden everywhere and can affect the plot.
Have poor aim and someone might die.
Not enough bullets and too many walkers will live, changing your group's plan or killing someone.
Have a lot of bullets and your group can have target lessons. and you'll share it with AI's that can potentially save lives.
Telltale could even make reloading significant. Let's say you reload at a bad time and a walker will take you by surprise.