I liked that they are starting to act like intelligent human beings finally, but there're still sporadic bouts of idiocy that make me want to punch a puppy.

Good ideas the group had:
1) One person takes leadership
2) Absolute silence when raiding the house
3) Take the prison
4) Use the fence for their benefit
5) Although I'm a bit etchy about this one: Loot the zombie swat dudes

Bad ideas or stupidity the group had:
1) Giving Carol the rifle instead of a better shot
2) Taking so long to realize that the swat zombies had no neck protection and that the face-shields could be turned up
3) Not scouting the prison when they went to look for the medical ward et all
4) Not making sure the territory they were passing through was secured
5) This ties into the previous one, but is worth mentioning on its own IMHO: Not making sure all the dead bodies were actually dead

I'm sure there're more, but those're the ones that pop into mind right now