Serious plot holes

Rating: 7/10 (7 April 2018)

A quiet place does a great job with cast, character development and suspense. The problem is they forgot to be consistent through the movie and get a script. The movie starts with no information with how they creatures arrived, if the world was mostly wiped out and how could nobody figure out how to kill them. Most were able to relate to the family and the heartaches they were enduring which is honestly what saved this film from being average.
The creatures they face seem to have insane hearing, just one noise and they are locked on to you like a heat seeking missile. We come to find out that the creatures open the armor on their heads to listen close, most people would easily understand this was the weak spot, it only took the almost the entire human race dying and almost this entire movie to realize that you should just shoot them with a shotgun when their heads open which happens many times. Many close calls happened when the characters felt it wasn't smart to carry guns, the only thing that could save them if they got discovered.
We also find out that others are alive within a distance of the families home, yet nobody felt it was a good idea to try to team up with other survivors to fight back and one by one they all disappear. Though the movie only ever acknowledged 3 creatures in the area they patrol, one always seemed to be within 100 ft of any noise incident.
The movie starts to become really inconsistent when the new baby arrives. They are able to walk to another house and get into the basement with a crying baby before the creatures can get to them and have no idea of finding out where they are hiding, but in most other scenes if you make a sound, even if you get it together and stay quiet after the incident the creatures seem to know exactly where you are. We find out that larger noises can make it safe to speak, like standing by a noisy waterfall. So why not just live by something like that to have some defense against the super hearing monsters?
This was also a movie that should have been about 20 minutes longer so they could go into what happened and maybe more encounters with the creatures. Monsters hunting humans with sound is also nothing new, however the cast really saved this movie from being just another average modern day scare flick. All in all this was a good movie, but most that see all the flaws will wonder how epic this film could have been if they thought more into it....